How can we help?

You can also find more resources in our Help Center.

Scalene Triangle

all the sides are not congruent

Isosceles Triangle

at least two congruent sides

Equilateral Triangle

all three sides are congruent

Acute Triangle

all three angles are less than 90 degrees

Obtuse Triangle

one angle is greater than 90 degrees

Right Triangle

one angle is 90 degrees

Equiangular

all three angles are 60 degrees