Question

if angle between two tangent drawn from a point p to a circle of radius a and centre o is 90 then op ​

Answer 1

Answer:

2a units

Step-by-step explanation:

∠QPR=90∘

and ∠OPQ=30∘

sin30∘=OPOQ⟹OP=sin30∘OQ=1/2a=2a

OP=2a units.

Answer 2

Answer:

If angle between two tangents drawn from a point P to a circle of radius a and centre 0 is 90∘ then OP=a√2. Solution : From point P, two tangents are drawn.