Hot Student Stories
top-5-grammar-and-spelling-checkers-to-rock-in-2019

The sum of the areas of two circles is 80 pi square meters find the length of the radius of a radius of each circle if one of them is twice the orher

Roger Moore

in Mathematics

follow
followin
1 answer
7 views

1 answer


Ralph Lopez on November 5, 2018

Let x=small circle 2x = largest circle nx^2 + π(2x)^2 = 80π x^2 + 4x^2 = 80 5x^2 = 80 x^2 = 16 x = +/- 4, but we need the positive one because there is no negative measurement so the answers are: 4m / 8m


Add you answer