Question

Can somebody help plz

Answer 1

The area of a circle with respect to its diameter is:

A=(πd^2)/4, we are told d=10 so

A=100π/4

A=25π ft^2

Answer 2

A= π r²

The radius of a circle is half the diameter. So, if the diameter is 10, then the radius is 5.

A : area
r : radius

A = π (5)²

A = π 25

A ≈ 78.54