Question

ABCD is a quadrilateral.

a) Calculate the value of x.

b) When ABCD is drawn to scale, would the lines AD and BC be parallel or not? A You must justify your answer without using a scale drawing.​

Answer 1

6x+90=360

6x=270

x=45

No lines are not parallel

Answer 2

A) 45=x

B) Yes, since both A and B are 90°