Answer:

d=28.01127

r=14.005

Step-by-step explanation:

Using the formulas

C=2πr

d=2r

Solving ford

d=C

π=88

π≈28.01127

r= d/2

= 14.0005

Answer:

D= 28

r= 14

Step-by-step explanation:

C of a circle= 2pie r

here,

88=2×22/7×r

r=88×7/2×22

r=14

D=28