Question

in the figure, PA and PB are tangents from P to the circle with centre O. LN touches the circle at and then show that PL + LM = PN + NM​

Answer 1

Tangent drawn from outside point to circle at two points have equal length.

i.e. PA=PB

= PL+LA=PN+NB

=

PL+LM=PN+NM

∵LA=LM∵NB=NM