zoelaryn3853 zoelaryn3853

04-02-2018
Mathematics

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The lengths of the sides of a triangle are 10, 13, and 19. classify the triangle as acute, right, or obtuse.

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tynollette tynollette

04-02-2018

if c²=a²+b², it is a right triangle.
if c²<a²+b², it is a acute triangle.
if c²>a²+b², it is a obtuse triangle.
in this case, 19²=361, 10²+13²=269. 19²>10²+13², so it is an obtuse triangle.

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