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?

Explanation:

If all three side - lengths are equal, it's an equilateral triangle. If two side - lengths are equal, it's an isosceles triangle. If all three side - lengths are different, it's a scalene triangle. You can compare the values of the side - lengths to determine the type.

Answer:

You can explain that if all three side - lengths of the triangle are equal, it is an equilateral triangle. If exactly two side - lengths are equal, it is an isosceles triangle. And if all three side - lengths are different from each other, it is a scalene triangle. So, by comparing the values of the side - lengths, one can determine the type of the triangle.