The angles of a quadrilateral are in the ratio 4 ratio 5 ratio 4ratio 5 find the measures of the angles and give a special name to the quadrilateral
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let the angles be 4x , 5x ,4x and 5x
4x +5x+4x+5x =360°.........angle sum property
18x = 360°
x=360÷18
x= 20°
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