Lines, angles, and Triangles

Front

How are triangles classified?

Back

Triangles are classified based on equal sides and types of angles.

Front

What type of angle is less than 90 degrees?

Back

Acute angle.

Front

What is a point in geometry?

Back

A point is a specific location in space that has no size or dimension.

Front

What do we call a line that goes straight up and down?

Back

Vertical line.

Front

What type of angle is exactly 90 degrees?

Back

Right angle.

Front

What is a ray in geometry?

Back

A ray is a part of a line that starts at a point and extends infinitely in one direction.

Front

What do we call two lines that never meet?

Back

Parallel lines.

Front

What is an obtuse angle?

Back

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

Front

What is a horizontal line?

Back

A horizontal line is a line that goes straight across from left to right.

Front

How many sides does a triangle have?

Back

A triangle has three sides.