1. equilateral : 3 sides are equal 2.scalene : 2 sides are equal 3. isosceles : no sides are equal
by colour and similarities
Acute Angles: Less 90 degrees but more than 0 degrees. Obtuse Angles: More than 90 degrees but less than 180 degrees.
A scalene triangle has 1 unequal side. Rather than a equilateral triangle has all equal sides.
One way is they both are triangles and have 3 sides.