Question

How do you solve the missing elements for this problem. use of 3.14 pie

Answer 1

Solution

1)

For this case r= 3 inches

D= 2*3= 6 in

C= 2pir= 2*pi*(3in)=2*3.14*3in= 18,84 in

A= pi (r^2)= pi*(3in^2)= 28.27 in

2)

r= 20 in

D= 2*20 in = 40in

C= 2*3.14*20in= 125.6in

A= pi*r^2 = 3.14*(20in^2)= 1256.66 in^2