Q19
In a triangle PQR, PX, QY and RZ be altitudes intersecting at O. If PO = 6 cm, PX = 8 cm and QO = 4 cm, then what is the value (in cm) of QY?
A.
6.3
B.
5.8
C.
6
D.
7
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
PO × OX = QO × OY = RO × OZ
6 × 2 = 4 × OY
OY = 3
∴ Then QY = QO + OY = 4 + 3 = 7 cm