Question

Determine if a triangle can be formed with the given lengths. If it can, classify it as acute,

obtuse or right.
5, 7, 10

Answer 1

steps below

Explanation:

1. It can be formed a triangle: sum of any two sides is greater than the 3rd side

2. It can't be an obtuse triangle: 5² + 7² = 74 < 10²

the triangle is an obtuse-angled triangle if the square of the longest side (c²) is greater than the sum of the square of other two sides (c²>a²+b²)