Question

A triangle-shaped machine part has sides of 2 1/2 inches, 3 1/4 inches, and 5 inches. The triangle's perimeter is

A. 10 1⁄8 inches.
B. 11 1⁄2 inches.
C. 10 3⁄4 inches.
D. 11 3⁄8 inches.

Answer 1

C

Explanation:

The perimeter of any shape is the distance around the edge of the shape. It is found by adding the side lengths of each side together.

Add each side length listed for the triangle part.

`P = 2(1)/(2) +  3(1)/(4) + 5 \\P = 2(2)/(4) + 3(1)/(4) + 5\\P = 10 (3)/(4)`