If a triangle has sides of 8,11, and 13. Is it a right triangle?

Question

Mathematics

Trinity Blackwell

2 October, 21:38

If a triangle has sides of 8,11, and 13. Is it a right triangle?

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Answers (1)

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Briley · Answer 1

If a² + b² = c², then the triangle is right.

So we have (8) ² + (11) ²? (13) ²

(8) ² is 64, (11) ² is 121, and (13) ² is 169.

So we have 64 + 121? 169

64 + 121 is 185 and we can see that 185 > 169.

This triangle would not be a right triangle.

In fact, it would be an acute triangle.

So no, it's not a right triangle.