A leather ball has a diameter of 28.4 cm. Which is the area of the piece of leather used on the surface of the ball?

2534 cm^2 to the nearest whole number.

Step-by-step explanation:

The ball is a sphere whose surface are is 4 pi r^2

The radius r = 1/2 diameter = 1/2 * 28.4

= 14.2 cm.

The required area = 4 * pi * 14.2^2

= 2533.88 cm^2

has the same diameter as the sphere, and height equal to its diameter ... The surfce area of a soccer ball is 250 square inches ... An official basketball has a radius of 12.5 cm and ... much leather is required to cover 12 official.