1.

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

Answer»

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  



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