Question

5.
In Figure-1, from an external point P, two tangents PQ and PR are
drawn to a circle of radius 4 cm with centre 0. If ZQPR = 90°, then
length of PQ is
(A) 3 cm
(B) 4 cm
(C) 2 cm
(D) 22 cm​

Answer 1

Answer:

(B) 4cm

Step-by-step explanation:

POQ is an isosceles triangle so

QO=PQ

therefore OQ=PQ=4cm