Chapter 13.4, Problem 65E

To determine

To find the statements true for the given figure.

Answer to Problem 65E

Therefore all the statements are true.

Explanation of Solution

Given:

Thegiven figure is

  $a=45$

  

Calculation:

The first statement is true that is $AD\parallel BC$

Since the diagonal of a parallelogram bisects the angle therefore $l_3$ bisects $\angle ABC$ .

  $b=a=45$

Therefore all the statements are true.