Question

In the given figure, ABCD is a parallelogram. If ∠B = 100°, then (∠A + ∠C) is equal to :

1) 360°

2) 200°

3) 180°

4) 160°​

Answer 1

Answer:

4) 160

Step-by-step explanation:

<A=<C  (property of parallelogram) (opposite angles are equal)

<A+<B=180.(sum of two adjacent angles is 180)

<A=180-100 (<B=100)

<A=80 .

so by this <A=<C=80

so <A+<C=160.