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alynaanalise

  • 4 years ago

Find the measure of line DC and line AD. Line DB is an altitude. (see figure below) Plz answer, thanks :D

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  1. alynaanalise
    • 4 years ago
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  2. tiaph
    • 4 years ago
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    Both triangles are right-angled triangles. Thus u can use Pythagoras theorem to solve the question. If u do not know what the theorem is about, see drawing.. |dw:1329221023919:dw| the theorem states that, the 3 sides are related by the equation. a^2 +b^2 = c^2 Thus back to the question.. DA = sqrt (8^2 + 10^2 ) =12.8 DC = sqrt (8^2 + 12^2) =14.4

  3. Directrix
    • 4 years ago
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    @alyn --> Do you need the answers in simplified radical form?

  4. alynaanalise
    • 4 years ago
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    yes, i do...

  5. alynaanalise
    • 4 years ago
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    i need the answers in simplified radical form

  6. Directrix
    • 4 years ago
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    DA = √ 164 = 2 √ 41 DC =4 √ 13

  7. mominanisar
    • 4 years ago
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    DC^2=BC^2-BD^2 DC^2=144-64 DC^2=80 DC=SQRT(80) AC=AB+BC AC=10+12 AC=22

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