Question

In Fig. 7.35, state if PQ || EF.

Answer 1

In triangle EFD and QPD
$\frac{FD}{QD}=\frac{(2.4+3.6)}{3.6}$
=$\frac{6}{3.6}$
=1.7
And
$\frac{ED}{PD}=\frac{(3+3.9)}{3.9}$
=$\frac{6.9}{3.9}$
=1.7
so both are similar triangle
hence
PQ || EF.