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Classify the triangle with side measure of 12, 5, and 11 as acute, obtuse,or right.

0 votes
use pythagorean therem......
asked Dec 25, 2012 in GEOMETRY by dkinz Apprentice

1 Answer

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Use Pythagorean theorem c^2 = a^2 + b^2 to classify the triangle

If c^2 = a^2 + b^2 then the triangle is right triangle.

If c^2 < a^2 + b^2 then the triangle is acute triangle.

If c^2 > a^2 + b^2 then the triangle is obtuse triangle.

12^2 = 5^2 + 11^2 144 = 25 + 121 144 < 146

the triangle is acute triangle

answered Dec 25, 2012 by bradely Mentor
Thank you!!!

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