bellrain24 bellrain24

15-05-2020
Mathematics

contestada

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

Respuesta :

hoanganh384628 hoanganh384628

16-05-2020

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

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