Classifying Triangles

Front

What is a triangle?

Back

A triangle is a polygon with three edges and three vertices.

Front

What are the types of triangles based on angles?

Back

1. Acute Triangle: All angles are less than 90 degrees. 2. Right Triangle: One angle is exactly 90 degrees. 3. Obtuse Triangle: One angle is greater than 90 degrees.

Front

What are the types of triangles based on sides?

Back

1. Equilateral Triangle: All sides are equal. 2. Isosceles Triangle: Two sides are equal. 3. Scalene Triangle: All sides are different.

Front

Define an acute triangle.

Back

An acute triangle is a triangle where all three angles are less than 90 degrees.

Front

Define a right triangle.

Back

A right triangle is a triangle that has one angle measuring exactly 90 degrees.

Front

Define an obtuse triangle.

Back

An obtuse triangle is a triangle that has one angle measuring more than 90 degrees.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle in which all three sides are of equal length and all three angles are equal (each measuring 60 degrees).

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle in which all three sides are of different lengths.

Front

How do you classify a triangle with angles measuring 60°, 60°, and 60°?

Back

It is classified as an Equilateral Triangle.