the sum of the two opposite angles of a quadrilateral is 180 degree the other two angles are in the ratio 5 ratio 4 find the measure of these two angles of the quadrilateral
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given that the sum of the two opposite angles
we know that in a quadrilateral the sum of all the interior angles is 360 degree
let the other two angles be 5x and 4x
5 x + 4 x +180=360
9x=360-180=180 degree
x is equal to 180/9=20
therefore the angles are
5x=5×20=100 degree
4x=4×20=80 degree
we know that in a quadrilateral the sum of all the interior angles is 360 degree
let the other two angles be 5x and 4x
5 x + 4 x +180=360
9x=360-180=180 degree
x is equal to 180/9=20
therefore the angles are
5x=5×20=100 degree
4x=4×20=80 degree
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