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spidergirl51

  • 3 years ago

An isosceles triangle has a base of m and sides of m + 3. What simplified expression can be used to find the perimeter of the triangle?

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  1. spidergirl51
    • 3 years ago
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    help! any body some good in algebra 1

  2. spidergirl51
    • 3 years ago
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    can you guys write the steps and how you got the ansewr

  3. gallaxhar
    • 3 years ago
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    ((m+3)*2)+m=P ?

  4. gallaxhar
    • 3 years ago
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    I'm not sure though

  5. psi9epsilon
    • 3 years ago
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    PERIMETER is sum OF ALL SIDES

  6. spidergirl51
    • 3 years ago
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    oh

  7. psi9epsilon
    • 3 years ago
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    So if sides are m, and m+3 and m+3 sum is 3m+6

  8. spidergirl51
    • 3 years ago
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    yea so um idk this is algebra its in equalities i think

  9. psi9epsilon
    • 3 years ago
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    which is your perimeter

  10. spidergirl51
    • 3 years ago
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    yea so what do i do first

  11. psi9epsilon
    • 3 years ago
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    |dw:1351133317407:dw|

  12. spidergirl51
    • 3 years ago
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    u sure?

  13. psi9epsilon
    • 3 years ago
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    |dw:1351133370366:dw|

  14. psi9epsilon
    • 3 years ago
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    yes very sure, do you want to find the perimeter or AREA ?, REMEBER PERIMETER IS ALWAYS the SUM of all sides

  15. spidergirl51
    • 3 years ago
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    its the perimeter i need to find

  16. gallaxhar
    • 3 years ago
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    so my formula ((m+3)*2+m)=P works too :)

  17. psi9epsilon
    • 3 years ago
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    yes so thats correct, perimeter is m+ m+3 + m+3 = 3m+6

  18. spidergirl51
    • 3 years ago
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    i combined the liked terms and i got 3m+6

  19. psi9epsilon
    • 3 years ago
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    you are correct

  20. spidergirl51
    • 3 years ago
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    then i divide it by 3 m on both sides which get m=2

  21. spidergirl51
    • 3 years ago
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    right or wrong?

  22. psi9epsilon
    • 3 years ago
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    why do you want to divide, you just need the perimeter , P= 3m+6 are you supposed to find the value of m, and do you have the value of perimeter given?

  23. gallaxhar
    • 3 years ago
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    spider, "m" is a variable - it has no number except the one you, or your textbook or teacher give it, if they didn't give you a number for Perimeter variable, or m, then it's just m

  24. spidergirl51
    • 3 years ago
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    oh okay thanks C:

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