8
Answer: DSet 3: Triangles
Explanation
Charlotte is setting up a triangular tent. The two equal support poles are each 6 kilometers long, and the base is 5 kilometers. What is the total length of the tent frame?
A.
7
B.
27
C.
8
D.✓ Correct
17
Detailed Explanation
Choice D is correct. An isosceles triangle has two equal sides. 1. Two equal sides: 2 × 6 = 12 kilometers Base: 5 kilometers Perimeter: 12 + 5 = 17 kilometers Therefore, the perimeter is 17 kilometers.
Key Steps:
•
The correct answer is 17
Why others are wrong:
A: This would give an incorrect result. Choice A is incorrect and may result from a calculation error.
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.
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