The sum of the internal angles in a triangle add up to 180°. Always.
You will probably learn later more about internal angles in shapes so don't worry about that for now.
Knowing that all the internal angles add up to 180° help you form the equation to solve.
So adding the internal angles you will get:
W + Y + Z = 180
37 + 68 + 5x = 180 (substituted in the known values)
105 + 5x = 180
5x = 75 (balanced the equation by subtracting 105 from both sides of the eqn.)
x = 15 (solved for x by dividing both sides of eqn by 5)
2006-10-16 14:27:18
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answer #1
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answered by Anonymous
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The angles of a triangle should all add up to 180. If you subtract 37 and 68 from 180, you are left with 75. Thus, 5x=75. To solve for x, divide 75 by 5. x=15.
2006-10-16 21:13:37
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answer #2
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answered by Stacy 1
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37+68=105 180-105= 75 5/75= 15 z=15
2006-10-16 21:14:59
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answer #3
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answered by Joe D 3
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In a triangle, the sum of all 3 interior angles is 180 degrees.
So add up your three angle measurements, and set them = 180, then solve for x.
So we set up: 37 + 68 + 5x = 180
By combining like terms, we get 105 + 5x = 180.
Then by subtracting 105 from both sides, we get 5x = 75.
Finally by dividing by 5 on both sides we get an answer of x = 15.
2006-10-16 21:14:13
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answer #4
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answered by pecosbill2000 3
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37+68+5x=180(a triangle equals 180)
105+5x=180
-105 -105
5x=75
5x/5=75/5
x=15
answer is x=15
2006-10-16 21:16:48
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answer #5
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answered by sakura 1
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37+68+5x=180
5x=75
x=15
2006-10-16 21:12:57
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answer #6
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answered by Yoni 2
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5x=180*-(68+37)
=180*=105
x=21*
2006-10-16 21:14:17
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answer #7
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answered by raj 7
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The sum of all angles in a triangle is 180º. Add all the angles together and set that = 180º, solve for x.
2006-10-16 21:11:18
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answer #8
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answered by gp4rts 7
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