Polygons. Fill in the gap

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
A is a closed flat shape with straight edges. Closed means there are not gaps in the shape.

Each polygon is given a name, depending on how many it has. A 3-sided polygon is called a ; a 4-sided polygon is called a .

When a polygon has 5 or more sides, the names follow a simple pattern.

A 5-sided polygon is called a .

A 6-sided polygon is called a .

A 7-sided polygon is called a .

An 8-sided polygon is called an .

A 9-sided polygon is called a .

A 10-sided polygon is called a .