Question

Find the circumference and the area of a circle with the diameter of 4

Answer 1

Explanation:

the area is : A =πr² r : radius d : diameter d= 2r so : r=d/2 = 4/2 = 2

A =3.14(2²) = 12.56

the circumference is P= 2πr 2(3.14)(2)=12.56