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cuzzin

Right triangle: Find AB if BC=3, BD=5, and AD=7

  • 2 years ago
  • 2 years ago

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  1. cuzzin
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    • 2 years ago
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  2. AccessDenied
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    Well, you know two sides of the inner right triangle BCD and AD. You could use Pythagorean theorem to find the third side of the first triangle, and that's one segment of the leg in the larger right triangle. Then just add them together and use Pythagorean theorem again...

    • 2 years ago
  3. SUROJ
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    |dw:1333244473241:dw|

    • 2 years ago
  4. GChamon
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    5^2=3^2+4^2 DC=4 ad+dc=ac=4+7=11 ab=sqrt(121+9) ab=sqrt(130)

    • 2 years ago
  5. SUROJ
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    first find DC using \[h ^{2}=p ^{2}+b ^{2}\] AND then find AB considering ABC right angled triangle

    • 2 years ago
  6. GChamon
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    \[AB=5*\sqrt 26\]

    • 2 years ago
  7. cuzzin
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    Great, thanks guys.

    • 2 years ago
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