Question

a tangent PQ at a point P of a circle radius 7cm a line through center O at a point Q so that OQ=25cm the length of PQ is​

Answer 1

Answer:

OP=5 cm and OQ=12 cm

To find: PQ

By using Pythagoras Theorem, we have

OP

2

+PQ

2

=OQ

2

Putting given values in above equation

5

2

+PQ

2

=12

2

⟹PQ

2

=144−25

⟹PQ

2

=119

PQ=

119

cm

solution