The cylinder shown has a lateral surface area of about 400 square inches. Which answer is closest to the measure of the cylinder's radius? Use 3.14 to approximate pi.

The cylinder shown has a lateral surface area of about 400 square inches Which answer is closest to the measure of the cylinders radius Use 314 to approximate p class=
The cylinder shown has a lateral surface area of about 400 square inches Which answer is closest to the measure of the cylinders radius Use 314 to approximate p class=

Respuesta :

The formula for lateral surface of a cylinder is:

SA = 2 *PI * r *h

Replace the letters with the given values:

400 = 2 * PI * r *40

Multiply the right side:

400 = r * 251.2

Divide both sides by 251.2:

r = 400 / 251.2

r = 1.59

The radius is 1.59 inches.

Answer: 1.59

Step-by-step explanation: