Small practice
brighter futures.
Checking sign-in status
Menu

Geometry practice

Regular Polygon Area and Perimeter Worksheets

Identify regular polygons and calculate area or perimeter from side lengths and clearly marked approximate apothems, with worked answers.

Ready-made English PDF · fixed settings

Worksheet · LetterWorksheet · A4
Customize worksheet ↓
With answer key

Customization below makes a separate PDF.

First page of the regular polygon area and perimeter worksheets printable worksheetOpen full-size sample (first page)

Fixed English ready-made files. Custom settings below apply only to the configured PDF.

Ready to print

Start with a ready-made worksheet

Name each polygon and find the requested measurements. Use the displayed apothem and round area to two decimal places.

Download the practice pages alone, or include a separate answer key or teacher model. Longer activities may use more than one page.

US Letter

Student worksheetWorksheet with answers

A4

Student worksheetWorksheet with answers
Customize this worksheet

Paper sizes and printing help · More geometry activities

Use the measurements that are printed

The apothem is perpendicular to a side and is displayed to four decimal places. Use that displayed approximation for A = nsa/2, then round area to two decimal places. Whole-number mode changes the side length only.

Learning objective

What this activity builds

Use P = ns and A = Pa ÷ 2 to measure regular polygons.

Worked example

A regular hexagon has side length 4 cm and approximate apothem 3.4641 cm. Find its perimeter and area using these measurements.

Perimeter = 24 cm; area ≈ 41.57 cm².

P = 6 × 4 = 24. Using the displayed apothem, A ≈ 24 × 3.4641 ÷ 2 = 41.5692, which rounds to 41.57 cm².

Teaching notes

Make the practice count

  • The apothem runs from the center perpendicular to a side.
  • Use the displayed approximate apothem so your calculation agrees with the key.
  • Whole side lengths keeps side lengths integral; apothems can still be approximate decimals.

Make it yours

Customize the practice

Choose your options, update the preview, then download the exact same pages.

Nine diagrams ask for the polygon type and your selected measurements. Whole-number mode applies only to side lengths; area uses the displayed four-decimal-place approximate apothem.

Worksheet settings

Polygon types
Measurement units
Page note and reproducible seed

The same settings and seed make the same questions. Shared links include your page note; leave personal information out.

Configured PDF · Regular Polygon Area and Perimeter · US Letter

Preview ready. Download includes these exact pages.

2 student pages
Enlarged pages scroll. PDF size stays the same.
Math SheetNameScoreTeacherDateRegular Polygon Area and PerimeterIdentify each regular polygon and find the requested area or perimeter. For area, use the displayed side and approximate apothem, then round to two decimal places.1. Identify the regular polygon. Given s = 17.04 yards and a approximately23.4085 yards, find its area and perimeter. Round area to two decimal places.s = 17.04aType:Area:Perimeter:2. Identify the regular polygon. Given s = 10.31 inches and a approximately10.7045 inches, find its area and perimeter. Round area to two decimal places.s = 10.31aType:Area:Perimeter:3. Identify the regular polygon. Given s = 6.52 feet and a approximately 7.8703feet, find its area and perimeter. Round area to two decimal places.s = 6.52aType:Area:Perimeter:4. Identify the regular polygon. Given s = 4.27 centimeters and a approximately6.5709 centimeters, find its area and perimeter. Round area to two decimalplaces.s = 4.27aType:Area:Perimeter:5. Identify the regular polygon. Given s = 18.44 millimeters and a approximately15.9695 millimeters, find its area and perimeter. Round area to two decimalplaces.s = 18.44aType:Area:Perimeter:6. Identify the regular polygon. Given s = 9.40 feet and a approximately 6.4690feet, find its area and perimeter. Round area to two decimal places.s = 9.40aType:Area:Perimeter:For area, use the displayed approximate apothem: A = nsa/2. Perimeter is P = ns.math-sheet.comPage 1 of 2
Math SheetNameScoreTeacherDateRegular Polygon Area and PerimeterIdentify each regular polygon and find the requested area or perimeter. For area, use the displayed side and approximate apothem, then round to two decimal places.7. Identify the regular polygon. Given s = 11.73 millimeters and a approximately10.1585 millimeters, find its area and perimeter. Round area to two decimalplaces.s = 11.73aType:Area:Perimeter:8. Identify the regular polygon. Given s = 2.60 centimeters and a approximately3.5717 centimeters, find its area and perimeter. Round area to two decimalplaces.s = 2.60aType:Area:Perimeter:9. Identify the regular polygon. Given s = 1.07 yards and a approximately 1.1109yards, find its area and perimeter. Round area to two decimal places.s = 1.07aType:Area:Perimeter:For area, use the displayed approximate apothem: A = nsa/2. Perimeter is P = ns.math-sheet.comPage 2 of 2

A useful next step

Related activities

First page preview: Regular Polygon Angles Worksheets

Geometry

Regular Polygon Angles Worksheets

Find one interior angle, one exterior angle and the interior-angle sum for regular polygons with five through twelve sides.

Preview and download
First page preview: Triangle area and perimeter worksheets

Geometry

Triangle area and perimeter worksheets

Identify nine right, common scalene, equilateral and isosceles triangles, then calculate area, perimeter or both from visible whole-number or decimal measurements in five selectable units.

Preview and download
First page preview: Quadrilateral area and perimeter worksheets

Geometry

Quadrilateral area and perimeter worksheets

Name nine marked squares, rectangles, parallelograms, rhombi and trapezoids, then calculate area, perimeter or both with exact whole-number or decimal dimensions in five selectable units.

Preview and download