Solve the problem.
-The surface area of a cylinder with height, h, and base radius, r, is given by . Using 3.14 for find the surface area of a cylinder with a radius of 2 cm and a height of 30 cm.

Question

Solve the problem.
-The surface area of a cylinder with height, h, and base radius, r, is given by  . Using 3.14 for  find the surface area of a cylinder with a radius of 2 cm and a height of 30 cm.

Quizplus · Accepted Answer

Substitute r=2 and h=30 in the formula, we get:
Surface Area = 2*(3.14)*(2)*(30) + 2*(3.14)*(2)^2
= 376.8 cm^2
Hence, the correct choice is B. Plug in the values of r and h into the given formula:

Surface area = 2πrh + 2πr²
Surface area = 2(3.14)(2)(30) + 2(3.14)(2)²
Surface area = 376.8

Round to the nearest whole number:

Surface area = 377

Therefore, the correct choice is B.

Solve the Problem. -The Surface Area of a Cylinder with Height, H, and Height