4
Answer: DSet 4: Triangles
Explanation
Sofia designs triangular earrings. Each earring has two equal sides of 17 meters and a base of 9 meters. What is the perimeter of one earring?
A.
21
B.
53
C.
33
D.✓ Correct
43
Detailed Explanation
Choice D is correct. An isosceles triangle has two equal sides. 1. Two equal sides: 2 × 17 = 34 meters Base: 9 meters Perimeter: 34 + 9 = 43 meters Therefore, the perimeter is 43 meters.
Key Steps:
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The correct answer is 43
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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