4 years ago

The diameter of a circle is 40 m. Find the aread of the circle in terms of π

Mathematics

2 answers:

Reil [10]4 years ago

5 0

Answer:

40π

Step-by-step 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

Nostrana [21]4 years ago

5 0

Answer:

Step-by-step 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

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