Question

What is the area of a circle with a diameter of 6 cm? A .6 π cm 2 B. 9 π cm 2 C. 12 π cm 2

Answer 1

9π

Explanation:

6÷2=3 to find the radius

3^2=9 to find the area

so it's B. 9π because u times it by π

Answer 2

Area = πr² where r represents the radius of the circle

Since we're given the diameter, we divide by 2 to find the radius.

Remember, the radius is just the straight line from the center of a circle to its circumference of (perimeter).

So our radius is 6/2 or 3 cm

Since we're given that the radius of our circle is 3,

we have π(3 cm)² or π(9 cm²) which is written as 9π cm².