Understanding Angles and Triangles

To learn about the properties of circles

To study the Pythagorean theorem

To understand the angle sum theorem

To explore the history of geometry

All angles are 60 degrees

It is always a square

It has three sides

It has two sets of parallel sides

Two squares

Two congruent triangles

Two trapezoids

Two circles

Because rectangles are made of circles

Because triangles are always equilateral

Because a rectangle has 360 degrees in total

Because triangles have four sides

An angle formed by extending a side of the triangle

An angle inside the triangle

An angle that is equal to the interior angles

An angle that is always 90 degrees

They are equal to the sum of the remote interior angles

They are always smaller than interior angles

They are always larger than 180 degrees

They are unrelated to interior angles

To draw a new triangle

To measure the angles using a protractor

To name an exterior angle and its remote interior angles

To calculate the area of the triangle

An angle that is part of a square

An angle that is 90 degrees

An angle opposite to the exterior angle

An angle adjacent to the exterior angle

The interior angle

The exterior angle

The sum of all angles in the triangle

The area of the triangle

They determine the type of triangle

They are used to find the exterior angle

They are irrelevant to triangle properties

They help in calculating the perimeter