Classify triangles by sides

The question
131313 equilateralisoscelesscalene

Is this triangle equilateral, isosceles, or scalene?

Name this triangle

How it works.

sides:13 cm13 cm13 cm
sides:13 cm13 cm13 cm
sides:13 cm13 cm13 cm
equilateral
  1. 01

    A triangle can be named by its angles or by its sides. This asks for the side name, so look at the side lengths.

  2. 02

    Count how many are the same: all three match.

  3. 03

    All three equal is equilateral.