Classifying Two Dimensional Figures

Front

How many acute angles must an acute triangle have?

Back

3

Front

What kind of triangle has all angles less than 90 degrees?

Back

Acute Triangle

Front

What kind of triangle has one angle that is exactly 90 degrees?

Back

Right Triangle

Front

What kind of triangle has one angle that is greater than 90 degrees?

Back

Obtuse Triangle

Front

What type of angle is less than 90 degrees?

Back

Acute Angle

Front

What type of angle is exactly 90 degrees?

Back

Right Angle

Front

What type of angle is greater than 90 degrees but less than 180 degrees?

Back

Obtuse Angle

Front

What is the sum of the angles in any triangle?

Back

180

Front

What is a polygon with three sides called?

Back

Triangle

Front

What is a polygon with four sides called?

Back

Quadrilateral