In a quadrilateral ABCD, angle B=45 .angle D=3, angle B and angle C=2 angle B .find the value of angle A.

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Answers

2015-03-08T14:27:34+05:30
B=45
d=3*b=135
c=2*b=90
sum of the angles=360
360=a+b+c+d
360=45+90+135+a
360=270+a
a=90·
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thats wrong
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2015-03-08T14:28:18+05:30
In quad abcd 
 A+B+C+D=360 degrees
A+45+90+135=360
A=360-270
A=90
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