9
Answer: BSet 2: Triangles
Explanation
Ava designs triangular earrings. Each earring has two equal sides of 7 centimeters and a base of 12 centimeters. What is the perimeter of one earring?
A.
13
B.✓ Correct
26
C.
36
D.
16
Detailed Explanation
Choice B is correct. An isosceles triangle has two equal sides. 1. Two equal sides: 2 × 7 = 14 centimeters Base: 12 centimeters Perimeter: 14 + 12 = 26 centimeters Therefore, the perimeter is 26 centimeters.
Key Steps:
•
The correct answer is 26
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.
🎯 Keep Practicing!
Master all sections for your best SAT score