Question

wht is the ratio of areas of 2 circles whose circumference are in the ratio 3:4?

Answer 1

Step-by-step explanation:

plz see the attachment for the solution

Answer 2

Step-by-step explanation:

Let the circumferences be 3x and 4x.

Circumference = 2 × Pi × r

So,

3x = 2 pi r

r = 3x ÷ 2pi

And, 4x = 2 pi R

R = 4x ÷ 2pi

Area of circle = pi r^2

pi r^2 : pi R^2

(3x)^2 ÷ (2pi)^2 : (4x)^2 ÷ (2pi)^2

9x^2 : 16x^2

9 : 16

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