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Triangle GHJ has the exterior angles shown below.
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Answered by
2
Hey dear here is your answer..
(9x+6 ). + (10x - 1 ). + (10x+7). = 180 -- ( angle sum property of a triangle )
29x + 12 = 180
29 X = 180-12
X = 5. 8
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(9x+6 ). + (10x - 1 ). + (10x+7). = 180 -- ( angle sum property of a triangle )
29x + 12 = 180
29 X = 180-12
X = 5. 8
❤(ӦｖӦ｡)❤(ӦｖӦ｡)❤(ӦｖӦ｡)
Answered by
6
Answer:
C) 12
Step-by-step explanation:
We Know That Sum of All The Angles of Triangle is Equal to 180
So Interior Angle Will be (180-9x-6) , (180 - 10x - 6) , (180+1-10x)
(180-9x-6) + (180 - 10x - 6) + (180+1-10x) = 180
540-12+1 - 29x = 180
529 - 180 = 29x
349 = 29x
x = 12.03 or approx 12
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