Question

please helpme with this

Answer 1

Step-by-step explanation:

Diameter =12 ft

i.e 2r=12

or, r=12/2 =6ft

SA =3πr²

=3(6)²π ft²

=3×36π ft²

=108π ft²

Answer 2

Answer:

108 pi ft^2

Step-by-step explanation:

r=1/2d=6 ft

SA = 3pir^2= 3pi(6 ft)^2=108pi ft^2