Question

ABCD is a parallelogram. Find the measure of x and y.
If angle a =(3x+15). angle B=(2y+5).angle C=(2x+35)....

Answer 1

angle A+angle C=180° ( opportunities angles are equal to 180)
3x+15+2x+35=180°
5x+50=180°
X=130/5
X=26°
A=3*26+15
=78+15
=93°
Angle A +angle B=180°(co interior)
93°+2y+5=180°
2y=180-102
y=72/2
Y=36°

Answer 2

angle A+angle c =180
3x +15 +2x+35 =180
5x+50=180
x=20
A=3*26+15
A=78+15
A=93
angleA+angle B = 180
93 + 2y+5=180
2y=180-102
y=3