Question

in the following figure side AB || side DC. side Ad is congruent to side BC, if angle ABC= 70°, measure angle DAC= 20° then find the measure of angle a, angle b, angle c and angle d​

Answer 1

Answer:

a=c

b=20°

d=70° vertically opposite angle

c=20°+70°+x=180°

90°+x=180°

x=c=90°