10
Answer: ASet 2: Triangles (Intermediate)
Explanation
PROBLEM
An isosceles triangle has two equal sides of 9 and a base of 4. What is its perimeter?
An isosceles triangle has two equal sides of 9 and a base of 4. What is its perimeter?
A.✓ Correct
22
B.
24
C.
20
D.
19
Detailed Explanation
Choice A is the best answer. Perimeter = 9 + 9 + 4 = 22
Why others are wrong:
B: 24 is incorrect because it does not satisfy the equation.
C: 20 is incorrect because it does not satisfy the equation.
D: 19 is incorrect because it does not satisfy the equation.
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