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emilysoto123

  • 3 years ago

What is the perimeter of the following polygon?

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  1. emilysoto123
    • 3 years ago
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  2. Sunshine447
    • 3 years ago
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    the bottom of the triangle is how many units long?

  3. emilysoto123
    • 3 years ago
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    isn't it 16

  4. Sunshine447
    • 3 years ago
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    yes

  5. Sunshine447
    • 3 years ago
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    it wants you to find the perimeter so you have to first find the hypotenuse

  6. Sunshine447
    • 3 years ago
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    the triangle is made up of two smaller triangles so you have to find the hypotenuse of one of them

  7. Sunshine447
    • 3 years ago
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    since the bottom of both triangles combined is 16, what is the length of only one of those smaller triangles? HINT: its half of the bottom value

  8. emilysoto123
    • 3 years ago
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    8

  9. Sunshine447
    • 3 years ago
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    right. Are you familiar with the pythagorean theorem?

  10. emilysoto123
    • 3 years ago
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    yup a2+b2=c2

  11. Sunshine447
    • 3 years ago
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    okay, so, you have a and b now find c. A=8 and b=15. find C. dont forget to square them

  12. Sunshine447
    • 3 years ago
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    do you know how?

  13. emilysoto123
    • 3 years ago
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    yea

  14. Sunshine447
    • 3 years ago
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    okay, so what is the length of the hypotenuse or one of the smaller triangles?

  15. Sunshine447
    • 3 years ago
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    yup so now you have the value of the bottom of the triangle and the value of both sides. To find the perimeter you have to add the values of all the sides. So whats the perimeter of the triangle?

  16. Sunshine447
    • 3 years ago
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    the sides lengths are 16 17 and 17. whats the perimeter?

  17. emilysoto123
    • 3 years ago
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    50?

  18. Sunshine447
    • 3 years ago
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    yup! good job!

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