The angle of a quadrilateral are in the ratio 1:3:5:9 find the measure of all the angle
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let X,3x,5x and 9x be the four angle of quadrilateral
=X+3x+5x+9x=360°[measure of four angle of a quadrilateral]
=18x=360°
=X=360/18
= X=20
therefore,1st angle=20°[because X=1]
2nd angle =3*20=60
3rd angle =5*20=100
4th angle =9*20=180
=X+3x+5x+9x=360°[measure of four angle of a quadrilateral]
=18x=360°
=X=360/18
= X=20
therefore,1st angle=20°[because X=1]
2nd angle =3*20=60
3rd angle =5*20=100
4th angle =9*20=180
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