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mars1129 [50]
3 years ago
8

The measures of the three angles of a triangle are (X)°,(2x)°and (3x)° what is the value of x

Mathematics
2 answers:
kvv77 [185]3 years ago
7 0

Answer:

x=30

Step-by-step explanation:

Add up all of the values of the angles and set it equal to 180 degrees since a triangle is always made up of angles that have a sum of 180 degrees.

x+2x+3x=180

6x=180

x=30

dedylja [7]3 years ago
4 0
Okay so the sides of a triangle add up to 180 degrees so add up all of the sides = 6x so therefore 180=6x so divide both side by 6 and you get x=30
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Studentka2010 [4]

Answer:

x=10

Step-by-step explanation:

Supplementary angles are angles equal to 180°.

Therefore:

4(2x+9)+2(4x-8)=180

Now that we have our equation, let's distribute the 4 and the 2 into the parentheses they are next to:

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Combine like terms:

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Divide by the coefficient of x, which is 16:

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~

Check your work by substituting 10 into one of the equations above:

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It's correct!

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