find the size of unknown angles.solve the question in process plz
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in parallelogram ABCD
In ∆ BCD
35°+30°+ angle b= 180°
65°+ b = 180
b= 115°
a=b= 115° in parallelogram opposite sides are equal
angle y+30° +115°=180 (adjacent angle of parallelogram are supplementary)
y = 180°-145
y= 35°
x=30° (alternate interior angle )
also find with the help of supplementary angle property
In ∆ BCD
35°+30°+ angle b= 180°
65°+ b = 180
b= 115°
a=b= 115° in parallelogram opposite sides are equal
angle y+30° +115°=180 (adjacent angle of parallelogram are supplementary)
y = 180°-145
y= 35°
x=30° (alternate interior angle )
also find with the help of supplementary angle property
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