Question

the ratio of two circumference is 3:4 find the ratio of their areas​

Answer 1

Circumferencs ratio= 2πr1/2πr2

r1/r2=3/4

area ratio = πr1^2/πr2^2

= r1^2/r2^2

=(r1/r2)^2

=(3/4)^2

=9/16

Answer 2

Step-by-step explanation:

2πr1=3

2×22/7×r1=3

R1=3×7/2×22

R1=21/44

2πr2=4

2×22/7×r2=4

R2=7/11

area=πr1^2/πr2^2

(21/44)^2÷(7/11)^2

441/1936÷49/121

9/16

9:16