Question

the opposite angles of parallelogram ABC are given as A=(3x+20)and c=(2x+70)find the measures of each angle

Answer 1

here is your answer

Answer 2

It's a property of parallelogram that opposite angles of a parallelogram are equal .

There fore , angle A = angle C

Or 3x + 20° = 2x + 70°

3x - 2x = 70° - 20°

x = 50°

Therefore , angle A = angle C = 3 × 50° + 20° = 170°

And angle B = angle D = 180° - 170° = 10°

Hence , 170° and 10° are the angles.