D. 20,096 cm2
To find the area of a circle, you can use the formula A = πr² where π is the constant pi (3.14) and r is the radius of the circle.
First, you need to find the radius of the circle using the circumference formula, C = 2πr.
502.4 = 2(3.14)r
502.4 = 6.28r
r = 502.4 / 6.28
r = 80 cm
Now, substitute the radius into the area formula:
A = 3.14 x (80)²
A ≈ 3.14 x 6400
A ≈ 20,096 cm2
Therefore, the area of the circle is 20,096 cm2.
If the circumference of a circle is 502.4 cm, what is the area of the circle? Use 3.14 for pi.
A. 80,384 cm2
B. 80 cm2
C. 160 cm2
D. 20,096 cm2
1 answer
1 answer