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anonymous

  • 5 years ago

A triangle has sides which are 6, 8, and 10 inches long. Which applied equation will prove that this triangle is or is not a right triangle

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  1. anonymous
    • 5 years ago
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    use tan for all of the sides so tanA= 8/6, tanB=10/6, tanC=8/10 and since none of them are equal to 0/1 (which is tan90) that proves that none of the angles are 90 (which would mean that it is a right triangle

  2. anonymous
    • 5 years ago
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    let a=6, b=8, c=10. a^2+b^2=c^2. 6^2+8^2=10^2 36+64=100, therefore it is a right triangle pythagorean theorem is only valid for right triangles.

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