Question

solve the question answer​

Answer 1

Answer:

a) given

circumference of circle =88m

π=22/7

We know that

circumference of circle=2πr

2×22/7×r=88

r=88×7/2×22

r=14

d=14+14=28

Answer 2

circumference= 2πr

88= 2×22/7×r

88/44= 7r

2 = 7r

2/7=r

d=2×2/7=4/7

circumference= 2πr

22= 2×22/7×r

22/44 = 7r

1/2=7r

1/14=r. - d=1/14×2=2/14

circumference=2πr

110=2×22/7r

110/44=7r

5/2=7r

5/14=r. d=5/14×2=5/14

circumference=2×22/7×r

23 = 44/7r

161/44=r

d= 161/44×2=161/22