4
Answer: BSet 1: Triangles
Explanation
Harper designs triangular earrings. Each earring has two equal sides of 19 inches and a base of 14 inches. What is the perimeter of one earring?
A.
62
B.✓ Correct
52
C.
42
D.
26
Detailed Explanation
Choice B is correct. An isosceles triangle has two equal sides. 1. Two equal sides: 2 × 19 = 38 inches Base: 14 inches Perimeter: 38 + 14 = 52 inches Therefore, the perimeter is 52 inches.
Key Steps:
•
The correct answer is 52
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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