Perimeter & Area Worksheet Generator
Make printable perimeter and area worksheets in seconds. Practice finding the perimeter or area of rectangles, squares, and triangles, with whole-number dimensions and whole-number answers every time — triangle areas are never a fraction. Print or download a clean PDF with a matching answer key. Free, no sign-up, and everything stays in your browser.
PDF puts the answer key on its own page.
Perimeter & Area Practice
12 problems · Mixed · Mixed · Standard
Name: ______________________ Date: ____________
Answer key
100 in
56 in
48 cm
32 m
53 cm
500 m²
120 cm²
42 in
60 in
81 m²
264 in²
54 cm
Answer Key · Perimeter & Area Practice
12 problems · Mixed · Mixed · Standard
100 in
56 in
48 cm
32 m
53 cm
500 m²
120 cm²
42 in
60 in
81 m²
264 in²
54 cm
How to use the perimeter & area worksheet generator
- 1Choose a shape — rectangle, square, triangle, or mixed — and whether to find the perimeter, the area, or both.
- 2Pick a difficulty, which controls the size of the dimensions.
- 3Press Regenerate for a fresh set of shapes anytime.
- 4Print the worksheet, or download a PDF with the answer key on its own page.
When this is useful
Finding perimeter
Practice adding up the side lengths of a rectangle, square, or triangle.
Finding area
Practice multiplying length by width, squaring a side, or halving base times height.
Mixed perimeter and area review
Blend both measures across all three shapes on one sheet for spiral review.
Homework, centers, and test prep
Send a set home, run a center, or build a focused sheet before an assessment.
Examples to try
An easy rectangle worksheet
Practice perimeter and area of rectangles with small, friendly whole-number dimensions.
A triangle area worksheet
Practice halving base times height — every base/height pair is chosen so the area is always a whole number.
A mixed-shape challenge worksheet
Combine rectangles, squares, and triangles with larger dimensions for a harder set.
Tips for better results
Start with one shape at a time
Isolate rectangles or squares first before mixing in triangles, which use a different formula for area.
Watch the units on area answers
Area answers are always shown with a squared unit (like cm²) — call this out as a common point of confusion.
Sketch the shape first
Students who need support do well drawing a quick sketch of the shape with its dimensions labeled before calculating.
Regenerate for different groups
Press Regenerate to make a fresh set with the same settings for another group or retake.
How the perimeter & area worksheet generator works
You choose a shape, a measure, and a difficulty, and the generator builds whole-number dimensions sized to that level. Triangle base/height pairs are always chosen so their product is even, so the area (half of that product) is never a fraction — and every triangle's three side lengths genuinely form a real, constructible triangle.
Perimeter answers use the same unit as the dimensions; area answers use the correctly squared unit (like cm²), matching how these are actually written in math class.
Everything is generated on your device, so you can make as many fresh worksheets as you like, instantly and for free. Press Regenerate for a brand-new set using the same settings.
Private by design
- No account and no sign-up. Just open it and start.
- Everything runs on your device, so the worksheet settings you choose stays with you.
- Nothing you create is uploaded. No values, names, scores, or generated content are sent to our servers.
- We use Google Analytics only for basic, anonymous pageview counts. It never receives what you enter into the tool.
Frequently asked questions
Is the perimeter and area worksheet generator free?
Yes, completely free, with no account and no limit on how many worksheets you make. There's no watermark on the printed sheet.
Which shapes are included?
Rectangles, squares, and triangles. Choose one shape, or leave it on Mixed for a blend of all three.
Is the triangle area ever a fraction?
No. Base and height are always chosen so their product is even, so the area (half the product) is always a whole number.
Are the triangles always real, constructible triangles?
Yes. Every set of three side lengths satisfies the triangle inequality, so it's always a genuine triangle, never an impossible one.
Can I download a PDF?
Yes. Download a clean PDF built on your device, with the problems on the first page and, when enabled, an answer key on its own page.
Are worksheet settings or answers uploaded or saved anywhere?
No. The worksheet is built entirely on your device, and the PDF is created there too — nothing is ever uploaded or stored on a server.
Helpful supplies for this activity
Optional supplies that can make printed classroom materials easier to reuse, organize, or share.
Some links may be affiliate links. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
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