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Mrfootballman97

  • 3 years ago

Can anyone please help me understand how to do this problem? I will give medals and become fans if you do.

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  1. Mrfootballman97
    • 3 years ago
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    |dw:1358735725040:dw|

  2. Mrfootballman97
    • 3 years ago
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    Given: Angle ACB is a right angle; D, E, and F are the midpoints of Seg. AB, BC, and CA. Find CD, EF, ED. Please help me understand how to do this

  3. zordoloom
    • 3 years ago
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    |dw:1358736371026:dw|

  4. Mrfootballman97
    • 3 years ago
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    What is the law of sines? How do i find EF and CD?

  5. zordoloom
    • 3 years ago
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    Sorry, I didn't realize you don't know trig. In this case, use the Pythagorean theorm

  6. zordoloom
    • 3 years ago
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    |dw:1358736683020:dw|

  7. zordoloom
    • 3 years ago
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    So, Side ED is 5 units long

  8. zordoloom
    • 3 years ago
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    FE would be 13.

  9. zordoloom
    • 3 years ago
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    and DC would be 13

  10. zordoloom
    • 3 years ago
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    Or, you could have used proportions. Since every triangle is the midpoint of another.

  11. Mrfootballman97
    • 3 years ago
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    Thanks Man! Now how would i find out this problem: If the measureof angle B is 23, find the measure of angle DCB

  12. zordoloom
    • 3 years ago
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    |dw:1358736914508:dw|

  13. Mrfootballman97
    • 3 years ago
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    I just need to find the measure of angle DCB

  14. zordoloom
    • 3 years ago
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    From what triangle?

  15. Mrfootballman97
    • 3 years ago
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    CDB

  16. zordoloom
    • 3 years ago
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    That angle would be 22.89

  17. zordoloom
    • 3 years ago
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    But since you don't know trig, I don't know how to explain this to you using any ordinary method.

  18. Mrfootballman97
    • 3 years ago
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    Ok. Well thanks man you saved me tonight.

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