SAT MATH • ANSWER CHECK
Triangles Similarity & Special Triangles
Complete the practice first, then open each answer to check your work. These answers match the revised September 2026 worksheets.
For a wrong answer, identify the cause: concept, algebra, arithmetic, interpretation, calculator choice, or timing. Equivalent exact numerical forms are accepted for these practice exercises.
Question 1
Answer: 24 + 8√5
Question 2
Answer: 32
Question 3
Answer: C
C. 27sqrt(3)
Question 4
Answer: C
C. 9sqrt(3)
Question 5
Answer: A
A. 20
Question 6
Answer: C
C. 24+8sqrt(3)
Question 7
Answer: B
B. 6sqrt(6)
Question 8
Answer: 9
Question 9
Answer: A
A. 4sqrt(3)
Question 10
Answer: 48
Question 11
Answer: D
D. 15
Question 12
Answer: 12
In this revised question EA = 6 (the original said EB = 6). By similarity AB/8 = EA/EC = 6/4, so AB = 12.
Question 13
Answer: 225/17
Question 14
Answer: C
C. 12.8
Question 15
Answer: I. 12, II. 1:16
Question 16
Answer: C
C. 40
Question 17
Answer: 25/13
Question 18
Answer: 24
Question 19
Answer: 4√13/3