7
Answer: ASet 5: Triangles (Beginner)
Explanation
PROBLEM
Recent studies show that a triangle has sides 9, 8, and 3. What is its perimeter?
A triangle has sides 9, 8, and 3. What is its perimeter?
A.✓ Correct
20
B.
22
C.
17
D.
18
Detailed Explanation
[Variation 1] Choice A is the best answer. Perimeter = 9 + 8 + 3 = 20
Why others are wrong:
B: 22 is incorrect because it does not satisfy the equation.
C: 17 is incorrect because it does not satisfy the equation.
D: 18 is incorrect because it does not satisfy the equation.