Please help me:
1. The diameter of a circle is 8 inches. What is the area?
2.What is the area of a circle with a radius of 6 inches?
3.The diameter of a circle is 10 meters. What is the area of the circle?

Respuesta :

1. d=8, r=4
4×4×π=16π=50.24
a = 16π or 50.24
2. r=6
6×6×π=36π=113.04
a = 36π or 113.04
3. d=10 r=5
5×5×π=25π=78.5
a = 25π or 78.5