Question

Determine whether the sides given would form an acute, obtuse, or right triangle. 7, 7, 13

Answer 1

Let a = 7 , b  = 7, and c = 13. c is always the biggest number.

Acute Triangle is when $c^2 \ \textless \ a^2 + b^2$

Right Triangle is when $c^2 = a^2 + b^2$

Obtuse Triangle is when $c^2 \ \textgreater \ a^2 + b^2$