Question

plzzz solve ot fastttttt​

Answer 1

Answer:

5cm

Step-by-step explanation:

Let O be the centre

PQ = 12cm and OQ=13cm

thus since PQ is a tangent and OQ is perpendicular to it angle OPQ=90 degrees

using pythogaurus theorum in triangle

OQ^2=OP^2+PQ^2

OP^2=PQ^2 - OQ^2

OP=√13^2 - 12^2

LHS=√169 - 144

      =√25

OP = 5cm

Radius = 5 cm