The three interior angles of a quadrilateral are 100º, 92º and 98º respectively. Find the fourth
angle.
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The fourth angle is 70°
the sum of all angles in a quadrilateral is 360°
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Answer:
first angle= 100
second angle= 92
third angle= 98
fourth angle=?
100+92+98+x =360
290+x =360
x=360-290
70
fourth angle = 70
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