Question

What is the diameter radius are and circumference of this circle

Answer 1

d = 1.59 c = 5

Explanation:

The formula to calculate the area of a circle is

A = π r ^2

This means that if r = 5 cm, the area is

A = 5^2 π cm ^2 = 25 π cm^ 2 ≈

78.539816 cm^ 2

Answer 2

The Radius is the distance from the center outwards. The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.