5
Answer: DSet 3: Triangles
Explanation
A triangular running track has one side of 24 meters and another of 22 meters. If one complete lap is 59 meters, what is the length of the third side?
A.
23
B.
3
C.
6
D.✓ Correct
13
Detailed Explanation
Choice D is correct. The perimeter of a triangle is the sum of all three sides. 1. Total perimeter: 59 meters Two known sides: 24 + 22 = 46 meters Third side: 59 - 46 = 13 meters Therefore, the third side is 13 meters.
Key Steps:
•
The correct answer is 13
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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