Angles and Lines

Front

What is an angle?

Back

An angle is formed when two lines meet at a point. It is measured in degrees.

Front

What is a right angle?

Back

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

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 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 line?

Back

A line is a straight path that extends infinitely in both directions.

Front

What is a ray?

Back

A ray is a part of a line that has a fixed starting point and extends infinitely in one direction.

Front

What is a point?

Back

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

Front

How many degrees are in a full circle?

Back

There are 360 degrees in a full circle.

Front

What do we call an angle that is exactly 90 degrees?

Back

A right angle.