In ΔABC, EF is parallel to BC. If AE = 8 cm, AB = 15 cm and AC = 22.5 cm, then find the length of AF.
Show answer & explanation
Correct answer: B
Explanation
Since EF ∥ BC, therefore
ΔAEF ∼ ΔABC
Thus, AE / AB = AF / AC
= 8 / 15 = AF / 22.5
AF = (22.5 × 8) / 15 = 12 cm