in quardlitral ABCD a:b:c:d=2:4:5:7
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Answer:
We also know that sum of all Quadrilateral 360°
Let the angle be x..
2x+4x+5x+7x=360°
=>18x=360°
=>x=360°/18
=>x=20°
1st angle=2×20=40°
2nd angle=4×20=80°
3rd angle=5×20=100°
4th angle=7×20=140°
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