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anonymous

  • one year ago

In isosceles trapezoid EFGH, EF= 20'', FG=25'', and ∠H=60º. Find EH.

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  1. amoodarya
    • one year ago
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    |dw:1437363731379:dw|

  2. amoodarya
    • one year ago
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    |dw:1437363790711:dw|

  3. amoodarya
    • one year ago
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    eh=25+2x

  4. amoodarya
    • one year ago
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    |dw:1437364011528:dw| sorry x/20=cos 60

  5. amoodarya
    • one year ago
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    it means x=20 cos 60 |dw:1437364099952:dw|

  6. amoodarya
    • one year ago
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    eh=25+2x=25+2(20 cos 60)

  7. anonymous
    • one year ago
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    So is EH=27? I do not know what cos means.

  8. anonymous
    • one year ago
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    nvm i know what cos means now

  9. anonymous
    • one year ago
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    My textbook says EH=45in

  10. amoodarya
    • one year ago
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    eh=25 +2 *(20* cos 60) =25 +2 * (20 *(0.5)) =25 +2*(10) =25+20 =45

  11. anonymous
    • one year ago
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    Do you just add the side and base 1 to get base 2?

  12. amoodarya
    • one year ago
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    yes eh =x + 25 +x

  13. anonymous
    • one year ago
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    Thank you for the help @amoodarya :)

  14. amoodarya
    • one year ago
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    your welcome!

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