Question

plz give answer of question 4

Answer 1

Answer:

its a proof its difficult quest might not be asked

Step-by-step explanation:

DF is a tangent and EF is a secant.

by tangent secant segment theorem. • • •

DF* =DExDG....... (1)

HF perpendicular to EF......( tang. theorem)

ΔDEF is a right angled triangle.  ••

•DE*=DF* ➕ EF*DE* =DF* ➕ ((2r*)DE* ➖ DF*

= 4r* DE* ➖ DE ✖ DG=4r*DF(DE ➖ DG)

=4r* DF ✖ GE