Question

The diagonals of a parallelogram PQRS intersect at O. If angleQOR=90° and angleQSR=50°, then
angle ORS is
90°
40°
70°
50°​

Answer 1

Answer:

ORS=40 degree

Step-by-step explanation:

#Beinyourattitude

Answer 2

Step-by-step explanation:

angle QOR =90°

angle SOR =180°- angle QOR

=180°-90°

=90°

In triangle OSR,

angle SOR=90°

angle OSR=50°

angle SOR + angle OSR + angle ORS = 180°

90°+50°+ angle ORS =180°

angle ORS = 180°-(90°+50°)

angle ORS=180°-140°

angle ORS=40°

so, option 40° is correct.