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Type: Multiple-Choice
Category: Circles
Level: Grade 10
Author: jjstanley
Last Modified: 7 years ago

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Circles Question

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Grade 10 Circles

Given

$A'=1.8$ ,

$A=0.64$ , and

$r'=0.75$ find

$r$ . Use the formulas

$C/(C')=r/(r')=d/(d')$ or

$A/(A')=d^2/(d' ^2)=r^2/(r' ^2)$ (where

$C, r, d, A$ represent the circumference, radius, diameter, and area of a circle).