Set 1: Triangles (Beginner)

**Choice D is the best answer.** Perimeter = 10 + 3 + 6 = 19

Explanation

Answer: D

PROBLEM

A triangle has sides 10, 3, and 6. What is its perimeter?

A.

22

B.

21

C.

16

D.

19

✓ Correct

Detailed Explanation

Choice D is the best answer. Perimeter = 10 + 3 + 6 = 19

Why others are wrong:

A: 22 is incorrect because it does not satisfy the equation.

B: 21 is incorrect because it does not satisfy the equation.

C: 16 is incorrect because it does not satisfy the equation.