if you doubled the radius of an 8 foot circle what would be the ratio os the area of the smaller circle to the larger circle

Question

Clare Bender

Mathematics

2 November, 06:44

if you doubled the radius of an 8 foot circle what would be the ratio os the area of the smaller circle to the larger circle

+3

Answers (1)

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Weston Donaldson · Answer 1

Step-by-step explanation:

area of the small = pi * r^2

area of the big = pi * (2*r) ^2 = pi * 4 * r^2 = 4 * area of small

-> ratio of small : big = 1: 4