4
Answer: BSet 5: Triangles
Explanation
Emma's triangular garden has two sides of 15 feet and 24 feet. The total border length is 72 feet. How long is the remaining side?
A.
43
B.✓ Correct
33
C.
16
D.
23
Detailed Explanation
Choice B is correct. The perimeter of a triangle is the sum of all three sides. 1. Total perimeter: 72 feet Two known sides: 15 + 24 = 39 feet Third side: 72 - 39 = 33 feet Therefore, the third side is 33 feet.
Key Steps:
•
The correct answer is 33
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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