Set 1: Triangles (Intermediate)

**Choice A is the best answer.** Each side = 9 / 3 = 3

Explanation

Answer: A

PROBLEM

An equilateral triangle has a perimeter of 9. What is the length of each side?

A.

3

✓ Correct

B.

6

C.

1

D.

5

Detailed Explanation

Choice A is the best answer. Each side = 9 / 3 = 3

Why others are wrong:

B: 6 is incorrect because it does not satisfy the equation.

C: 1 is incorrect because it does not satisfy the equation.

D: 5 is incorrect because it does not satisfy the equation.