4
Answer: ASet 3: Triangles
Explanation
Leo is setting up a triangular tent. The two equal support poles are each 14 kilometers long, and the base is 7 kilometers. What is the total length of the tent frame?
A.✓ Correct
35
B.
17
C.
25
D.
45
Detailed Explanation
Choice A is correct. An isosceles triangle has two equal sides. 1. Two equal sides: 2 × 14 = 28 kilometers Base: 7 kilometers Perimeter: 28 + 7 = 35 kilometers Therefore, the perimeter is 35 kilometers.
Key Steps:
•
The correct answer is 35
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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