Question

if PA and PB are tangents to the circle drawn from an external point P. CD is the third tangent touching the circle at Q .if PA=10cm and DQ=2cm . what is Length of PC​

Answer 1

Thanks for your question

Catch up ur answer,here we go

PA=PB (tangents drawn from external point P)

=>PC+CA=10

=>PC+CQ=10

[therefore,CA=CQ(tangent drawn from an external point C)]

=>PC+2=10

=>PC=8cm

Hope this will help you