Question

3. In the adjoining figure, ABCD is a
quadrilateral in which AB || DC and
AD || BC. Prove that ZADC = ZABC.​

Answer 1

Answer:

yes they are equal

Step-by-step explanation:

given: ABCD is a quadrilateral.

side AB is Parellel to side DC.

side AD is parellel to side BC.

to prove: angle ADC is equal to angle ABC.

Proof: the given quadrilateral is rectangle

( by definition : quadrilateral with opposite side parellel is rectangle)

Each angle of rectangle is 90°

therefore measure angle ADC = to measure angle ABC