Question

Find the surface area of the cylinder. Use π=3.14. Use the formulas LA=2πrh and SA=LA+2πr^2.

A) 82.9 ft²
B) 37.1 ft²
C) 60 ft²
D) 22.9 ft²

Answer 1

To find the surface area of a cylinder, we need to use the formula SA = 2πrh + 2πr^2. By substituting the values of the radius and height into the formula and calculating using the given value of π, we can find the surface area.

Step-by-step explanation:

To find the surface area of a cylinder, we can use the formula SA = 2πrh + 2πr^2. First, we need to find the values for the radius (r) and height (h) of the cylinder. Once we have those values, we can substitute them into the formula. Let's say the radius is 3 units and the height is 5 units. Plug those values into the formula: SA = 2π(3)(5) + 2π(3)^2 = 30π + 18π = 48π. Now, if we're given that π is equal to 3.14, we can easily calculate the surface area as 48(3.14) = 150.72 square units.