Triangles and Angles

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

Front

What are the types of triangles based on side lengths?

Back

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

Front

What are the types of triangles based on angles?

Back

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

Front

What type of triangle has one right angle?

Back

Right triangle.

Front

How many sides does a triangle have?

Back

Three sides.

Front

What is an Isosceles Triangle?

Back

A triangle with at least two sides of equal length.

Front

What is a Scalene Triangle?

Back

A triangle with all sides of different lengths.

Front

What is an Equilateral Triangle?

Back

A triangle with all three sides of equal length.

Front

How many angles does a triangle have?

Back

Three angles.

Front

What is the sum of the angles in a triangle?

Back

180 degrees.