tag:blogger.com,1999:blog-71390850015676952652024-03-13T05:56:07.162+00:00DO FINITO AO INFINITOEste espaço tem como objectivo proporcionar conhecimentos específicos de conteúdos de Matemática e estimular o prazer de pensar e o desafio pessoal de resolver problemas.Unknownnoreply@blogger.comBlogger257125tag:blogger.com,1999:blog-7139085001567695265.post-68846394171949349802013-10-02T23:44:00.001+01:002021-05-06T21:45:09.233+01:00Problema 6- Áreas<div dir="ltr" style="text-align: left;" trbidi="on">
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Determina a área da figura, em centímetros quadrados. Apresenta o resultado arredondado às unidades. Não efetues arredondamentos nos cálculos intermédios. Mostra como chegaste à tua resposta. (Utiliza 3,1416 para valor aproximado de Pi)</div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj47DWFC8K2cFEWR5dKRbracnfUTrsDg0dgIhysFdwGApOzbc5z3tI02dco3B2MTtKIZAXCM2uphKTSjrX3DrmCoqxJrMi7rRXezM72WusDiWNgVsvkgvxZ-YJ6HAayih31Ygu-tZTfthg/s1600/prob1.gif" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="220" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEj47DWFC8K2cFEWR5dKRbracnfUTrsDg0dgIhysFdwGApOzbc5z3tI02dco3B2MTtKIZAXCM2uphKTSjrX3DrmCoqxJrMi7rRXezM72WusDiWNgVsvkgvxZ-YJ6HAayih31Ygu-tZTfthg/s320/prob1.gif" width="320" /></a></div>
<span style="font-family: Georgia, "Times New Roman", serif;">A1= 3,1416 x (1,5cmx 1,5cm)</span><br />
<span style="font-family: Georgia, "Times New Roman", serif;">A1= 7,0686 cm2</span><br />
<span style="background-color: lime; color: black; font-family: Georgia, "Times New Roman", serif;">Semicírculo= 7,0686 cm2:2=3, 5343 cm2</span><br />
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<span style="font-family: Georgia, "Times New Roman", serif;"> </span></div>
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<span style="font-family: Georgia, "Times New Roman", serif;">A2=3,1416 x (2,5cmx2,5cm)</span></div>
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<span style="font-family: Georgia, "Times New Roman", serif;">A2=19,635 cm2</span></div>
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<span style="background-color: #ffd966; font-family: Georgia, "Times New Roman", serif;">Semicírculo= 19,635 cm2:2=9,8175 cm2</span></div>
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<span style="font-family: Georgia, "Times New Roman", serif;"> </span></div>
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<span style="font-family: Georgia, "Times New Roman", serif;">A3=3,1416 x (2cm x2cm )</span></div>
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<span style="font-family: Georgia, "Times New Roman", serif;">A3=12,5664 cm2</span></div>
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<span style="background-color: cyan; font-family: Georgia, "Times New Roman", serif;">Semicírculo= 12,5664cm2:2=6,2832 cm2</span></div>
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<span style="background-color: cyan;"></span><span style="font-family: Georgia, "Times New Roman", serif;"> </span></div>
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<span style="background-color: white; font-family: Georgia, "Times New Roman", serif;">A4= (bxh)/2</span></div>
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<span style="font-family: Georgia, "Times New Roman", serif;">A4= (4 cm x 3 cm):2</span></div>
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<span style="font-family: Georgia, "Times New Roman", serif;">A4= 12cm2:2 = 6 cm2</span></div>
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<span style="font-family: Georgia, "Times New Roman", serif;"></span> </div>
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<span style="font-family: Georgia, "Times New Roman", serif;">Afigura= 3,5343 cm2 +9,8175 cm2 +6,2832 cm2 + 6cm2</span> = 25,635 cm2<br />
<span style="background-color: cyan;">A área da figura é 26 cm2</span></div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-26872268020080577842013-05-12T21:05:00.003+01:002023-09-12T21:29:08.652+01:00Perímetro do círculo<div dir="ltr" style="text-align: left;" trbidi="on">
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<a href="http://viajarnamatematica.ese.ipp.pt/moodle/file.php/1/vnm-v0/conteudo/pi.html">Pi</a> (clica no link)</div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-30302326701684373462013-05-12T20:37:00.001+01:002013-05-12T20:37:44.578+01:00Isto é Matemática - A Chave das Chaves .<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-56907903254229182572013-05-07T20:28:00.000+01:002013-05-07T20:28:48.711+01:00O Pi<div dir="ltr" style="text-align: left;" trbidi="on">
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIYoblAKqRFfYljqWozEtt6c2Oq3jDluwGXcF7a947RZyxSF89LWi13FoV6M8ttAArezokhiFHIlKlAxFIAGmUSlFcvw64N_zo8xnsFf9NN6Z_OTxut2r9dbrOjMjFTxdAmRKtmnSYG3I/s1600/0,,38082919,00.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="125" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjIYoblAKqRFfYljqWozEtt6c2Oq3jDluwGXcF7a947RZyxSF89LWi13FoV6M8ttAArezokhiFHIlKlAxFIAGmUSlFcvw64N_zo8xnsFf9NN6Z_OTxut2r9dbrOjMjFTxdAmRKtmnSYG3I/s200/0,,38082919,00.jpg" width="200" /></a></div>
<strong><span style="color: #990000;"><span style="font-family: Verdana, sans-serif;"></span></span></strong><br />
<strong><span style="color: #990000;"><span style="font-family: Verdana, sans-serif;">O que representa o número <img alt="Simbolo do Número Pi" src="http://www.fraccoesetc.host56.com/Image/pi.jpg" /></span>?</span></strong><br />
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<span style="font-family: Verdana, sans-serif;">O número PI não é mais do que o valor da razão entre a circunferência de qualquer círculo e o seu diâmetro. </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhlqwImc8J3bLFPQyKStRz_2gvLkB4BBGkqF9k1PmeUo5CUih6bSwWbmFF9PZ2G9Bdp9fNx-97gb3GkJn_dl8F1Ex8MtCOTqcCvTu8ZdH0chyphenhyphenU_ykWAy5WbUaRQdxJhRWGuHf-Jb2Ls4WI/s1600/value-of-pi.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="211" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhlqwImc8J3bLFPQyKStRz_2gvLkB4BBGkqF9k1PmeUo5CUih6bSwWbmFF9PZ2G9Bdp9fNx-97gb3GkJn_dl8F1Ex8MtCOTqcCvTu8ZdH0chyphenhyphenU_ykWAy5WbUaRQdxJhRWGuHf-Jb2Ls4WI/s320/value-of-pi.jpg" width="320" /></a></div>
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<span style="font-family: Verdana, sans-serif;">É a mais antiga constante matemática que se conhece. É um número irracional, com infinitas casas decimais e não periódico.</span></div>
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<span style="font-family: Verdana;"><a href="http://viagem%20ao%20interior%20de%20pi/">Viagem ao Interior de PI</a> (clica no link):</span><span style="font-family: Verdana, sans-serif;">Escolhe uma sequência de algarismos, um número.... Por exemplo a tua data de nascimento na forma <span class="dcbx-10"><b>DDMMAAAA</b></span>, um número de <span class="dcbx-10"><b>telefone</b></span>, o número do teu <span class="dcbx-10"><b>bilhete de identidade</b></span>, ... e clica no "pesquisar"</span></div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-69103996955406493342013-05-06T23:24:00.002+01:002013-05-06T23:24:37.364+01:00Isto é matemática - o raio da terra<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-80578600736075576192013-03-18T10:42:00.002+00:002013-03-18T10:42:51.982+00:00Isto é Matemática: Boas Vibrações .<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-78966693400486513262013-03-18T10:41:00.002+00:002013-03-18T10:41:39.959+00:00Isto é Matemática: Epiménides, Mentiras e Vídeo .<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-47805859214868321582013-03-18T10:40:00.002+00:002013-03-18T10:40:42.157+00:00.Isto é Matemática "A Multiplicação e uma nova tabuada" .<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-17982233125269293412013-03-18T10:39:00.003+00:002013-03-18T10:39:39.328+00:00Isto é Matemática: "A lógica é fofinha" .<div dir="ltr" style="text-align: left;" trbidi="on">
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-31890627818492546322013-02-24T18:01:00.001+00:002013-02-24T18:21:20.269+00:00Ângulos de lados paralelos<div dir="ltr" style="text-align: left;" trbidi="on">
<span style="font-family: Arial, Helvetica, sans-serif;"><strong>Dois ângulos de lados </strong></span><span style="font-family: Arial, Helvetica, sans-serif;"><strong>paralelos</strong> ou são iguais – se </span><span style="font-family: Arial, Helvetica, sans-serif;">forem ambos agudos ou </span><span style="font-family: Arial, Helvetica, sans-serif;">obtusos – ou são </span><span style="font-family: Arial, Helvetica, sans-serif;">suplementares – se um deles </span><span style="font-family: Arial, Helvetica, sans-serif;">for agudo e o outro obtuso. </span>
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<a href="http://cravalledevalverde.es/matica/geometria/anguloscmap/angulosp.htm">ângulos de lados paralelos ( applet feito no geogebra)</a></div>
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Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-7139085001567695265.post-82824421413216365422013-02-17T13:08:00.001+00:002013-02-17T13:08:48.080+00:00Isto é matemática: ...conhecer as razões pelas quais foram determinadas através da Matemática as medidas universais do papel <div dir="ltr" style="text-align: left;" trbidi="on">
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