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brianAC.

  • one year ago

What is the area of LMNO? (picture below)

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  1. brianAC.
    • one year ago
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    |dw:1359688362043:dw|

  2. geerky42
    • one year ago
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    Find the height \(\overline{NP}\) then use the formula \(A = bh\)

  3. brianAC.
    • one year ago
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    isnt the height 10?

  4. geerky42
    • one year ago
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    No, it's slant height. We want actual height.

  5. brianAC.
    • one year ago
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    damn i forgot how to find height i got all into other formulas

  6. geerky42
    • one year ago
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    Use Pythagorean Theorem. Ring any bells?

  7. brianAC.
    • one year ago
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    ohhh ok. give me a minute

  8. brianAC.
    • one year ago
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    so it would look like 19^2+10^2=8^2?

  9. geerky42
    • one year ago
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    No, here, let me show you. |dw:1359689637105:dw| Does this make sense?

  10. geerky42
    • one year ago
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    |dw:1359689823749:dw|

  11. geerky42
    • one year ago
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    Does this make sense?

  12. brianAC.
    • one year ago
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    yea

  13. geerky42
    • one year ago
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    So, what is h?

  14. brianAC.
    • one year ago
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    36

  15. geerky42
    • one year ago
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    You forgot to take square root of it. (√)

  16. brianAC.
    • one year ago
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    what u mean?

  17. brianAC.
    • one year ago
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    i think the height is 18 but im not sure

  18. AccessDenied
    • one year ago
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    \( h^2 + 8^2 = 10^2 \) <--We solve this for \(h\). \( h^2 = 10^2 - 8^2 \) <-- Notice that we have that exponent of 2. We have to take the square root of both sides. \( h = \sqrt{10^2 - 8^2} \) <-- This would be our value of h.

  19. geerky42
    • one year ago
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    Can you find the value of h yet?

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