8

Set 5: Triangles (Intermediate)

Explanation

Answer: B

PROBLEM

Evidence indicates that an equilateral triangle has a perimeter of 33. What is the length of each side?

An equilateral triangle has a perimeter of 33. What is the length of each side?

A.

10

B.

11

✓ Correct
C.

9

D.

14

Detailed Explanation

[Variation 4] Choice B is the best answer. Each side = 33 / 3 = 11

Why others are wrong:
A: 10 is incorrect because it does not satisfy the equation.
C: 9 is incorrect because it does not satisfy the equation.
D: 14 is incorrect because it does not satisfy the equation.