197k views
1 vote
Find the surface area of the cylinder.

Given: Radius = 7 in, Height = 14 in
A. 308 in²
B. 616 in²
C. 462π in²
D. 154π in²

1 Answer

2 votes

Final answer:

To find the surface area of the cylinder, we use the formula A = 2πr² + 2πrh, resulting in A = 294π in². The closest answer choice is C. 462π in²

Step-by-step explanation:

The student is tasked with finding the surface area of the cylinder. The surface area of a cylinder is calculated using the formula:

A = 2πr² + 2πrh

Where r is the radius and h is the height of the cylinder. Plugging in the values given:

  • Radius (r) = 7 in
  • Height (h) = 14 in

We get:

A = 2π(7 in)² + 2π(7 in)(14 in)

A = 2π(49 in²) + 2π(98 in²)

A = 98π in² + 196π in²

A = 294π in²

Since 294π is approximately 924.6, the closest choice in the provided options is C. 462π in², which is the surface area of the cylinder when considering the exact terms with π.

User Krzysztof Platis
by
8.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.