Question

Find the diameter of circles whose circumference is 1)22cm 2)8.8m

Answer 1

Circumference of cirlce =2×22/7 ×r
Here circumference of cirlce given
2×22/7×r=22
R=22×7/22×2=7/2
Here radius is 7/2
And we know that
D=2r
D=2×7/2
D=7
And
2×22/7×r=8.8
R=8.8×7/2×22=1.4
Here r=1.4
So
D=2r
D=2×1.4
D=2.8

Answer 2

hope this will helps you