Question

if one angle of parallelgram is 75 .find the measure of remaining angle

Answer 1

let ,
PQRS is an parallelgram .
angleA of parallelgram is x
then the opposite sides are equal then opposite angle are congurant

sum of angle of quadrilateral is 360

base angle of parallelgram is supplimentry
heans ,angle P+angleR=180
angle P=180-75
=105
then the remaining angle is of 105°