Question

given parallelogram abcd , angle A and angle B measure (x + 30) and (3x - 90) respectively. determine the measure of each angle.​

Answer 1

Answer:

Hope it will be helpful to you

Step-by-step explanation:

1) Opposite angles in a parallelogram are equal.

2) Adjacent angles in a parallelogram are supplementary (sumis180 degree )  

∴∠B=∠D=135 degree  

 (opposite angles)

∠A+∠B=180 degree  

 (adjacent angles)

∠A=180−135

∠A=45 degree