1

Set 5: Triangles (Intermediate)

Explanation

Answer: B

PROBLEM

Intriguingly, an equilateral triangle has a perimeter of 36. What is the length of each side?

An equilateral triangle has a perimeter of 36. What is the length of each side?

A.

11

B.

12

✓ Correct
C.

13

D.

10

Detailed Explanation

[Variation 2] Choice B is the best answer. Each side = 36 / 3 = 12

Why others are wrong:
A: 11 is incorrect because it does not satisfy the equation.
C: 13 is incorrect because it does not satisfy the equation.
D: 10 is incorrect because it does not satisfy the equation.