Question

Find the area and the circumference of a diameter 8yd Use the value 3.14 for π, and do not round answer

Answer 1

circumference = 25.12 yards

area = 50.24 yards squared or yd^2

Explanation:

circumference = pi * d

3.14 * 8 =

25.12

area = pi* r^2

r = 1/2 of d = 4

area = pi * 16

3.14 * 16 =

50.24

Answer 2

Area: 50.24yds^2 Circumference: 25.12yds

Explanation:

Area: The formula for area of a circle is a = πr^2.

The radius (r) of the circle is 4yds because it is half the length of the diameter. The equation would like like this:

A = (3.14)(4)^2

A = (3.14)(16)

A = 50.24yds

Circumference: The formula for circumference is 2πr. We already know all of the variables so we can plug them in.

C = 2(3.14)(4)

C = 25.12yds

Hope this helps