Mathematics

Mathematics, 19.02.2021 18:40, phy75

O Joaquim recortou, num círculo de cartolina com 20 cm de diâmetro, dois quadrados com 2,5 cm de lado e dois triângulos, cada um deles com 15 cm2 de área, conforme observas na figura ao lado. Calcula a área da cartolina, depois de efetuados os recortes. Apresenta o resultado, em centímetros quadrados, arredondados às unidades. Apresenta todos os cálculos que efetuares.

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O Joaquim recortou, num círculo de cartolina com 20 cm de diâmetro, dois quadrados com 2,5 cm de lad...

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