Question

if adjacent angle A and B parallelogram ABCD and are in the ratio 7 : 5 then find all the angle of parallelogram

Answer 1

.Answer:Let angle A=7x

and angle B=5x

7x+ 5x=180

12x=180=180/12=15and ANGLE A=7x=7 x 15=105 and ANGLE B= 5x =5 x 15=75 and angle C=180-75=105 AND Angle D=180-105=75.