Question

Your classmate is unsure about how to use side lengths to determine the type of triangle. How would you explain this to your classmate?

Answer 1

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

If c2 < a2 + b2, the triangle is acute.

If c2 > a2 + b2, the triangle is obtuse

Answer 2

There are three types of triangle that differ from their side lengths.
1.Scalene
2. Isosceles
3. Equilateral

A triangle is scalene if all of its sides have different lengths.

A triangle is isosceles if two sides have equal measurements with each other.

A triangle is equilateral if all three sides have equal measurements with each other.

That is how you will explain it to your classmate. Have a nice day!