Question

The net of a right circular cylinder is shown. Where the radius of each circle is labled 5 meters and the height of the rectangle is labled 8 meters. What is the surface area of the cylinder?

A: 220 m2
B: 283 m2
C: 408 m2
D: 628 m2

Answer 1

I believe the answer is C

Answer 2

The surface area of the cylinder is equal to: C. 440 m².

How to calculate surface area of a cylinder?

Mathematically, the surface area (SA) of a cylinder can be calculated by using this formula:

SA = 2πrh + 2πr²

Where:

h represents the height.

represents the radius.

By substituting the given parameters into the surface area of a cylinder formula, we have;

Surface area (SA) of cylinder = (2 × 3.14 × 5 × 9) + 2 × 3.14 × 5²

Surface area (SA) of cylinder = 282.6 + 157

Surface area (SA) of cylinder = 439.6‬ ≈ 440 square meters.