Set 4: Triangles (Intermediate)

[Variation 1] **Choice D is the best answer.** Each side = 30 / 3 = 10

Explanation

Answer: D

PROBLEM

Recent studies show that an equilateral triangle has a perimeter of 30. What is the length of each side?

An equilateral triangle has a perimeter of 30. What is the length of each side?

✓ Correct

Detailed Explanation

[Variation 1] Choice D is the best answer. Each side = 30 / 3 = 10

Why others are wrong:

A: 13 is incorrect because it does not satisfy the equation.

B: 9 is incorrect because it does not satisfy the equation.

C: 7 is incorrect because it does not satisfy the equation.