Owen Haynes
07/19/2023 · Senior High School
QUESTÃo 09 - São dadas duas circunferências de raios \( r_{1}=15 \mathrm{~cm} \) e \( r_{2}=\mathbf{9} \mathrm{cm} \). Sendo \( d \) a distância entre os centros dessas circunferências, qual é o valor de d para que essas circunferências sejam tangentes interiores? Resolução:
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Para que as circunferências sejam tangentes interiores, a distância entre os centros deve ser igual à diferença dos raios. Portanto, \( d = 15 \, \text{cm} - 9 \, \text{cm} = 6 \, \text{cm} \).
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