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130/70= 13/7
13y+7y=180
20y=180
y=9
Q=7×9=63°
X=180°-2×63°=180-126=54°
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q+13/7q=180 °
q(1+13/7)=180 °
q(20/7)=180 °
q=18/2x7=63 °
x=180-(2x63)= 54 °
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54
P/q = 130/70 , 13/7
7p = 13q
P = (13/7)q
P+ q = 180
(13/7)q + q = 180
13q + 7q= 180x 7
20q = 1260
q = 1260/20
q = 63
Now
X = 180-2q
= 180 -2(63)
= 54
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