shakynah123 shakynah123

02-02-2018
Mathematics

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The lengths of the sides of a triangle are 7, 8, and 11. Classify the triangle as acute, right, or obtuse.

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choixongdong choixongdong

02-02-2018

c^2 < a^2 + b^2 = acute

c^2 > a^2 + b^2 = obtuse

c^2 = a^2 + b^2 = right

so

11 ^2 ? 7^2 + 8^2

121 > 113

answer

the triangle is an obtuse triangle

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