Go Math Grade 4 Chapter 10

Front

What are parallel lines?

Back

Lines that never meet and are always the same distance apart.

Front

How many sets of parallel lines does a trapezoid have?

Back

1 set of parallel lines.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is a parallelogram?

Back

A four-sided shape (quadrilateral) with opposite sides that are parallel and equal in length.

Front

What is an angle?

Back

A figure formed by two rays (sides) that share a common endpoint (vertex).

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What is a point in geometry?

Back

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