### Home > INT2 > Chapter 1 > Lesson 1.1.2 > Problem 1-17

1-17.

If no sides of a triangle have the same length, the triangle is called** scalene **(pronounced SKAY-leen). And, as you might remember, if the triangle has at least two sides that are the same length, the triangle is called** isosceles**. Use the markings or description in each diagram below to decide if

Sides with the same markings mean the lengths are the same.

isosceles

scalene

is a square isosceles