9
Answer: DSet 3: Triangles
Explanation
Mia is setting up a triangular tent. The two equal support poles are each 8 centimeters long, and the base is 12 centimeters. What is the total length of the tent frame?
A.
18
B.
38
C.
14
D.✓ Correct
28
Detailed Explanation
Choice D is correct. An isosceles triangle has two equal sides. 1. Two equal sides: 2 × 8 = 16 centimeters Base: 12 centimeters Perimeter: 16 + 12 = 28 centimeters Therefore, the perimeter is 28 centimeters.
Key Steps:
•
The correct answer is 28
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.
🎯 Keep Practicing!
Master all sections for your best SAT score