Question

In the parallelogram ABCD, ∆ABC = 70°. Find the other angles.​

Answer 1

Answer:

110°, 70°, 110° and 70°

Step-by-step explanation:

Angle B = 70°

The opposite angles of a parallelogram are equal.

=> Angle D = 70°

The adjacent angles of a parallelogram are supplementary.

=> Angle C = 180° - 70° = 110°

=> Angle A = 110°

Hence, all four angles are 110°, 70°, 110° and 70°.

Answer 2

Answer:

given ∠ABC=70°

         ∠ADC =70° [Opposite angles are equal in a parellellogram]

         ∠BCD = ∠DAB = 180-70 = 110°

                              [in a parellellogram adjecent sides are supplementary]