2 Answers

Jimi · Answer 1 · 2021-05-05T03:23:40+0000

Answer:

Explanation:

The radius of the circle is d/2

The Area of the circle is pi*r^2

The Area of the circle is pi * (d/2)^2

The Area of the circle is A = pi * (40/2)^2

The Area of the circle is A = 400 * pi

Prometheuspk · Answer 2 · 2021-05-09T12:23:08+0000

Answer:

40π

Explanation:

Circumference Formula: C = 2πr

Step 1: Divide diameter by 2 to get the radius

40 / 2 = 20 m -> Radius

Step 2: Plug into the Circumference Formula

C = 2π(20)

C = 40π

Answer: 40π

Please log in or register to add a comment.