Question

In parallelogram ABCD find value of a,b,c and d​

Answer 1

Answer:

Given , ∠ A =80

Here , ∠ A + ∠ B =180

∠ B =180−80

∠ B =100

The opposite angles of a parallelogram are equal.

Hence , ∠ C = ∠ A = 80

∠ B = ∠ D = 100

Answer 2

Answer:

Given,

<A =80

Here, <A + <B = 180

< B = 180-80

< B=100

The opposite angles of a parallelogram are equal.

Hence, <C = <A = 80

< B = <D=100