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lilly21

  • 2 years ago

help me pleeaazz! the altitude of an equilateral triangle is 20 inchs long. to the nearest inch, what is the length of each side of the triangle? a. 16 in b. 17in c. 23 in d. 40in

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  1. mr.luna
    • 2 years ago
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    hold on lemme get my calculator bruno mars

  2. lilly21
    • 2 years ago
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    lol im a girl u know, i just like him. everyone gets me a hard time about it!

  3. mr.luna
    • 2 years ago
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    |dw:1334802749475:dw|

  4. mr.luna
    • 2 years ago
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    is that what you menat by atitude?

  5. lilly21
    • 2 years ago
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    im guessing.... thats all the problem says it includes like no diagram

  6. mr.luna
    • 2 years ago
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    dude i took calculus and this is hard. give me a sec ok

  7. lilly21
    • 2 years ago
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    ok.

  8. mr.luna
    • 2 years ago
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    |dw:1334803098882:dw|

  9. mr.luna
    • 2 years ago
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    thats all i got. -_-

  10. lilly21
    • 2 years ago
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    ok so its 3 (x's) in total and they = 60? i think u wrote? the drawing goes off the square drawing thing so i cant really tell

  11. mr.luna
    • 2 years ago
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    the 60 is the degrees of the angles

  12. lilly21
    • 2 years ago
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    so all of them = to 60 degrees? as in every single one of them have a value of 60 degrees?

  13. petewe
    • 2 years ago
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    yes, so that means the top angles are 30 + 30. so just use your primary trig ratios since you have 2 right triangles.

  14. lilly21
    • 2 years ago
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    so its a 30 60 90 triangle right?

  15. petewe
    • 2 years ago
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    yep

  16. mr.luna
    • 2 years ago
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    |dw:1334803528274:dw|

  17. lilly21
    • 2 years ago
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    :) thanks, both of u guys!

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