Find the unknown angles in the given figure i ABCD is a parallelogram.
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r=25° (alternate with BAC)
p=30° (alternate with ACB)
s=55° (alternate with BDC)
BCD=r+30°=25+30=55°
BAD is also equal to 55°
BCD+BAD=55+55=110°
ABC+ADC=360-110=250°
ABC=ADC
So, ABC=ADC=250°/2=125°
t=ABC-s=125-55=70°
t=q (alternate angles)
So, q=70°
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