Angles and Triangles

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

Front

What is a triangle?

Back

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

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are acute.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one right angle.

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one obtuse angle.

Front

How many degrees are in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What is the difference between acute and obtuse angles?

Back

Acute angles are less than 90 degrees, while obtuse angles are more than 90 degrees.