Answer:
Acute TriangleAn acute triangle has three angles that each measure less than 90 degrees. Equilateral TriangleAn equilateral triangle is a triangle in which all three sides are the same length. Obtuse TriangleAn obtuse triangle is a triangle with one angle that is greater than 90 degrees.
What is the classification of the triangle by its sides and angles?
Triangles can be classified by their sides and by their angles. When classifying a triangle by its sides, you should look to see if any of the sides are the same length. If no sides are the same length, then it is a scalene triangle. If two sides are the same length, then it is an isosceles triangle
What are 3 ways to classify a triangle by its sides?
Classifying Triangles by Sides
scalene triangle-a triangle with no congruent sides.
isosceles triangle-a triangle with at least 2 congruent sides (i.e. 2 or 3 congruent sides)
equilateral triangle-a triangle with exactly 3 congruent sides.
NOTE: Congruent sides means that the sides have the same length or measure.
