please answer it very urgent.
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Answer:
let the fourth angle be x
30°+ 70°+ 100° + x= 360°
200°+x= 360°
X = 360°- 200°
X = 160° answer.....
hope this will help you...
Answered by
0
Step-by-step explanation:
the measures of three angles are 30,70 and 100
we know that the sum of all the angles is 360
therefore, 30+70+100+x=360
x=360-200
x=160°
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