Classify triangles

What is the base of a triangle?

• Any one of its sides, often the side on which the triangle is considered to be standing.

• The longest side of the triangle.

• The angle opposite to the base.

• The height of the triangle.

What are the types of triangles based on side lengths?

• Equilateral Triangle: All sides are equal.

• Isosceles Triangle: Two sides are equal.

• Scalene Triangle: All sides are different.

• Right Triangle: One angle is 90 degrees.

What is the sum of the angles in a triangle?

• 150 degrees

• 180 degrees

• 90 degrees

• 360 degrees

What is a vertex in a triangle?

• A point where two sides of a triangle meet.

• The longest side of a triangle.

• A line segment connecting two vertices.

• The area enclosed by the triangle.

What is an Equilateral Triangle?

• A triangle with all sides of different lengths and angles of varying measures.

• A triangle where all three sides are equal in length and all three angles are equal, measuring 60 degrees each.

• A triangle that has one angle measuring 90 degrees and the other two angles measuring 45 degrees each.

• A triangle with two sides of equal length and one side longer than the others.

What is an Obtuse Triangle?

• A triangle with all angles less than 90 degrees.

• A triangle that has one angle measuring more than 90 degrees.

• A triangle with one angle measuring exactly 90 degrees.

• A triangle with all sides equal in length.

What is a line segment?

• A line that extends infinitely in both directions.

• A part of a line that has two endpoints.

• A line that curves and does not have endpoints.

• A line that is only vertical.

What is an Acute Triangle?

• A triangle where one angle is greater than 90 degrees.

• A triangle where all three angles are less than 90 degrees.

• A triangle with one right angle.

• A triangle with all angles equal to 90 degrees.

How do you classify triangles based on angles?

• Acute Triangle: All angles are less than 90 degrees.

• Right Triangle: One angle is exactly 90 degrees.

• Obtuse Triangle: One angle is more than 90 degrees.

• Equilateral Triangle: All angles are equal to 60 degrees.

What is an Isosceles Triangle?

• A triangle with all sides of different lengths.

• A triangle that has at least two sides that are equal in length and the angles opposite those sides are equal.

• A triangle that has one right angle.

• A triangle with all sides equal in length.