Question

State if each triangle with the following side lengths is 7, 8, 10 acute, obtuse, or right.

a Acute
b Right
c Obtuse

Answer 1

Explanation:

Compare the longest side to the other 2 shorter sides of the triangle:

10² : 7² + 8²

= 100 : 113

Since 7² + 8² > 10², it is an acute triangle.