Question

plz tell with explanation​

Answer 1

Answer:

<DAB = 40 + 30 = 70

=> a = 30

b = 110

c = 110

Step-by-step explanation:

ABCD is a parallelogram

a = 30 (alternate interior angles)

<DAB = 40 + 30 = 70 (opposite angles of a parallelogram)

b = 110 (by angle sum property in triangle ACB

c = 110 (opposite angles if a parallelogram)