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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 · answer #1 · answered by Anonymous · 0 0

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 · answer #2 · answered by Stacy 1 · 0 0

37+68=105 180-105= 75 5/75= 15 z=15

2006-10-16 21:14:59 · answer #3 · answered by Joe D 3 · 0 0

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 · answer #4 · answered by pecosbill2000 3 · 0 0

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 · answer #5 · answered by sakura 1 · 0 0

37+68+5x=180
5x=75
x=15

2006-10-16 21:12:57 · answer #6 · answered by Yoni 2 · 0 0

5x=180*-(68+37)
=180*=105
x=21*

2006-10-16 21:14:17 · answer #7 · answered by raj 7 · 0 0

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 · answer #8 · answered by gp4rts 7 · 0 0

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