Question

The ratio of circumference of 2 circle is 66:88 . Find their diameter

Answer 1

Step 1: C1/C2=2 pi r1/2 pi r2;

Values=>C1/C2=66/88; (2 pi cancel);

Step 2: Putting Values

66/88=r1/r2

d=2 x radius

d1=2 x r1

d=2 x 66

d1=132m;

d2=2 x r2

d2=176m

Ratio is 132/176...