Question

5) ABCD is a parallelogram. If ZB = 100°, then find the value of angle A + angle B

Answer 1

Step-by-step explanation:

If ABCD is IIgm having angle b as 100 degree then angle A will be 80 degree as in a IIgm adjacent angles are supplementry. Angle C will be 80 degree too as angle A and Angle C are opposite angles which are equal in a IIg

Answer 2

sum of parallelogram is 180°

if one angle is 100 °

next 180 - 100 = 80°

so simply left two angles which means

that both the angles would be of 40°

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