10
Answer: ASet 2: Triangles
Explanation
Scarlett is setting up a triangular tent. The two equal support poles are each 15 kilometers long, and the base is 6 kilometers. What is the total length of the tent frame?
A.✓ Correct
36
B.
26
C.
18
D.
46
Detailed Explanation
Choice A is correct. An isosceles triangle has two equal sides. 1. Two equal sides: 2 × 15 = 30 kilometers Base: 6 kilometers Perimeter: 30 + 6 = 36 kilometers Therefore, the perimeter is 36 kilometers.
Key Steps:
•
The correct answer is 36
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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