Question

Which of the following shows a correct method to calculate the surface area of the cylinder?

cylinder with diameter labeled 3.2 feet and height labeled 3.8 feet

SA = 2π(1.6)2 + 3.2π(3.8) square feet
SA = 2π(1.6)2 + 1.6π(3.8) square feet
SA = 2π(3.2)2 + 3.2π(3.8) square feet
SA = 2π(3.2)2 + 1.6π(3.8) square feet

Answer 1

Below

Explanation:

The TWO ends are EACH = pi r^2 = pi (1.6)^2

there are two, so 2 * pi * (1.6)^2

the side surface area is the circumference ( pi * d) times the height

= pi * 3.2 * 3.8

Add the two underlined items to find the answer that matches

Answer 2

Hey i know im late to answer but the real answer is SA = 2π(1.6)2 + 3.2π(3.8) square feet

Explanation:

ive done the flvs quiz and i got a 100 percent!