Question

determine a medida de cada angulo interno do paralelogramo

Answer 1

x+20=2x-5
5+20=2x-x
x=25

y+65=2y-5
5+65=2y-y
y=70

A=x+20
A=25+20
A=45

B=2y-5
B=2.70-5
B=135

C=2x-5
C=2.25-5
C=45

D=y+65
D=70+65
D=135