1

Set 5: Triangles

Explanation

Answer: A

Liam is setting up a triangular tent. The two equal support poles are each 12 centimeters long, and the base is 5 centimeters. What is the total length of the tent frame?

A.

29

✓ Correct
B.

19

C.

39

D.

14

Detailed Explanation

Choice A is correct. An isosceles triangle has two equal sides. 1. Two equal sides: 2 × 12 = 24 centimeters Base: 5 centimeters Perimeter: 24 + 5 = 29 centimeters Therefore, the perimeter is 29 centimeters.

Key Steps:

The correct answer is 29

Why others are wrong:
B: This would give an incorrect result. Choice B is incorrect and may result from a calculation error.
C: This would give an incorrect result. Choice C is incorrect and may result from a calculation error.
D: This would give an incorrect result. Choice D is incorrect and may result from a calculation error.

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