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7. Find the smallest and largest angle of a quadrilateral. if measure of the four angles are
4x,7x, 15 x and 10x
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4x+7x+15x+10x= 360°(angle sum property of quadrilateral)
36x=360°
= x=10°
Therefore 4x=40°
7x=70°
10x=100°
15x= 150°
Largest angle=150°
Smallest angle =40°
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