1
Answer: BSet 2: Triangles
Explanation
Isabella is setting up a triangular tent. The two equal support poles are each 20 meters long, and the base is 15 meters. What is the total length of the tent frame?
A.
27
B.✓ Correct
55
C.
65
D.
45
Detailed Explanation
Choice B is correct. An isosceles triangle has two equal sides. 1. Two equal sides: 2 × 20 = 40 meters Base: 15 meters Perimeter: 40 + 15 = 55 meters Therefore, the perimeter is 55 meters.
Key Steps:
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The correct answer is 55
Why others are wrong:
A: This would give an incorrect result. Choice A 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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