two angle of a quardilateral measures 85° and 75° respectively .the other two angled are equal. find thr measure of each of these equal angles.
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Sum of quadrilateral is 360
let two angles which are equal to each other are 2x
so
85+75+2x=360
160+2x=360
2x=360-160
2x=200
x=100
other angles are 100
let two angles which are equal to each other are 2x
so
85+75+2x=360
160+2x=360
2x=360-160
2x=200
x=100
other angles are 100
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the sum of all angles of a quadrilateral is 360°
the one angle is 85° and second angle is 75°
360° =85+75+x+x
360°= 160 + 2x .
2x = 360° -160°
2x = 200° his measure is two angles
2x= 200/2 = 100°
100°
the one angle is 85° and second angle is 75°
360° =85+75+x+x
360°= 160 + 2x .
2x = 360° -160°
2x = 200° his measure is two angles
2x= 200/2 = 100°
100°
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