6
Answer: BSet 1: Triangles (Advanced)
Explanation
PROBLEM
Two similar triangles have a scale factor of 3. If a side of the smaller triangle is 7, what is the corresponding side of the larger triangle?
Two similar triangles have a scale factor of 3. If a side of the smaller triangle is 7, what is the corresponding side of the larger triangle?
A.
20
B.✓ Correct
21
C.
18
D.
22
Detailed Explanation
Choice B is the best answer. Larger side = 7 times 3 = 21
Why others are wrong:
A: 20 is incorrect because it does not satisfy the equation.
C: 18 is incorrect because it does not satisfy the equation.
D: 22 is incorrect because it does not satisfy the equation.