Acute triangles- all three angles are acute (less than 90 degrees).
Right triangles- have one right angle and two acute angles.
Obtuse triangles- have one obtuse angle (greater than 90 degrees) and two acute angles.
Equilateral triangles- all three sides congruent sides.
Isosceles triangles- have at least two congruent sides.
Scalene triangles- all 3 sides different lengths.
Practice Problems
Classify the following triangles by their sides and angles.
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See Related Pages\(\)
\(\bullet\text{ Geometry Homepage}\)
\(\,\,\,\,\,\,\,\,\text{All the Best Topics…}\)
\(\bullet\text{ Area and Perimeter of Triangles}\)
\(\,\,\,\,\,\,\,\,\)
\(\,\, A=\frac{1}{2}bh, \,\, P=s_1+s_2+s_3…\)
\(\bullet\text{ Andymath Homepage}\)
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