4th Grade Geometry Review

Front

What do the marks in the sides of this shape mean?

Back

Those sides are congruent.

Front

Right angles are:

Back

Exactly 90 degrees.

Front

Acute angles are:

Back

Less than 90 degrees.

Front

Obtuse angles are:

Back

Greater than 90 degrees.

Front

What do the marks on this shape mean?

Back

Those sides are parallel.

Front

What is a polygon?

Back

A closed shape with straight sides.

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

What is a right triangle?

Back

A triangle with one angle that is exactly 90 degrees.

Front

What is a quadrilateral?

Back

A polygon with four sides.

Front

What are parallel lines?

Back

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