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onedirection

  • one year ago

Find the angles in a triangle if the measures of the angles are a.) x, 2x, and 3x b.) x-10,x, and x+10 I'm in grade nine. Exam on monday! I have no idea what this question is talking about, oh yea, is there a way to change my username? I made it a year ago and I want to change it to TrueDirectioner or VasHappening?

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  1. onedirection
    • one year ago
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    Thanks Mertsj!

  2. Mertsj
    • one year ago
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    Do you know that when you add the three angles of a triangle you always get 180?

  3. onedirection
    • one year ago
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    yup. I'm not that dumb lol

  4. Mertsj
    • one year ago
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    So they said the three angles of the triangle are x, 2x and 3x. So you should write and solve the equation that says the sum of those 3 is 180

  5. onedirection
    • one year ago
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    x+2x+3x=180 6x=180 *180 divided by 6* x= 30

  6. onedirection
    • one year ago
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    thanks!

  7. Mertsj
    • one year ago
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    Yes. x = 30 and 2x = ? and 3x= ?

  8. onedirection
    • one year ago
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    wait is that right?

  9. onedirection
    • one year ago
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    2x=60

  10. onedirection
    • one year ago
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    3x=90

  11. Mertsj
    • one year ago
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    Do those 3 add up to 180?

  12. onedirection
    • one year ago
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    30 +60+90 = 180!

  13. Mertsj
    • one year ago
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    So now you have found the 3 angles of that triangle. And the b example is similar.

  14. Mertsj
    • one year ago
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    I'm not in a grade.

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