Question

In the figure PA =3cm,AB=9cm,PC=4cm then find CD

Answer 1

Step-by-step explanation:

PA = 3cm

AB=9cm

PB=9-3=3 cm

PC=4cm

PA*PB=PC*PD

3*3=4*PD

9=4*PD

PD=9/4

=2.25cm

CD=4+2.25=6.25 cm

Hope this help.