🧠 Grade 5 Math Quiz · 5. Geometry & Spatial Sense

Polygons Practice Questions

68 Grade 5 questions on Polygons. Choose an answer to get instant feedback and a short explanation — the first 10 are free.

A polygon is a closed shape made of how many or more straight sides?

Explanation: Hello my wonderful student! A polygon is a closed 2D shape with three or more straight sides. You are doing such a great job!

What do we call a polygon with exactly 5 sides?

Explanation: Excellent work! A 5-sided polygon is a pentagon. You are thinking like a mathematician!

A polygon with 6 sides is called a:

Explanation: Great job! Six sides = hexagon. Keep shining bright!

What is the name for a polygon with 8 sides?

Explanation: You're doing amazingly! Eight sides make an octagon. Wonderful!

How many vertices does a heptagon have?

Explanation: Hello dear! A heptagon has 7 sides and 7 vertices. Excellent!

A polygon with 3 sides is a:

Explanation: You're such a smart learner! Three sides = triangle. Perfect!

What do we call a 9-sided polygon?

Explanation: Great thinking! Nine sides = nonagon. You are doing beautifully!

A polygon with 10 sides is called a:

Explanation: Hello my friend! Ten sides = decagon. Wonderful!

Which polygon has the fewest number of sides?

Explanation: My wonderful student! A triangle is the smallest polygon with 3 sides.

The sum of interior angles in a quadrilateral (4 sides) is:

Explanation: You're doing great! For any quadrilateral it is 360°.

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