Question

if one angle of a parallelogram is 40°,what is the measure of the other angle​

Answer 1

Answer:

320 degree will be the answer

Answer 2

Step-by-step explanation:

suppose the parallelogram be ABCD

Let angle A = 40° (1)

therefore angle C= 40° (2) [opposite angles of parallelogram are congruent ]

angle A + angle B= 180° [adjacent angles of parallelogram are supplementary ]

40° + angle B= 180° (from 1)

angle B = 140

angle B= angle D (opposite angles of parallelogram are congruent)

angle D=140°

please mark me as brainiest