The ball is inscribed in the cylinder. The height of the cylinder is 10 cm. Calculate the surface area of the ball.

Since the ball is inscribed in a cylinder, the diameter of the ball is equal to the height of the cylinder.

D = BC = 10 cm.

Then the radius of the ball will be equal to: ОА = R = D / 2 = 10/2 = 5 cm.

The surface area of the ball will be equal to:

Sball = 4 * π * R ^ 2 = 4 * π * 25 = 100 * π cm2.

Answer: The surface area of the ball is 100 * π cm2.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.