Area & perimeter worksheets with answer keys

Area and perimeter of rectangles, triangles and circles, with units carried through. Grades 4-8. Every sheet prints with a matching answer key, and every sheet is generated fresh — so you can hand out a different one each time without writing it yourself.

Generate a area & perimeter worksheet →

What the problems look like

Three real examples at each difficulty, with answers.

Easy

• A rectangle is 9 cm by 8 cm. Find its perimeter. → 34 cm
• A rectangle is 9 cm by 7 cm. Find its area. → 63 cm²
• A rectangle is 11 cm by 9 cm. Find its perimeter. → 40 cm

Generate a full easy area & perimeter worksheet →

Medium

• A rectangle is 24 cm by 18 cm. Find its area. → 432 cm²
• A rectangle is 7 cm by 2 cm. Find its perimeter. → 18 cm
• A rectangle is 23 cm by 15 cm. Find its perimeter. → 76 cm

Generate a full medium area & perimeter worksheet →

Hard

• A triangle has base 25 cm and height 18 cm. Find its area. → 225 cm²
• A rectangle is 8 cm by 31 cm. Find its perimeter. → 78 cm
• A triangle has base 14 cm and height 20 cm. Find its area. → 140 cm²

Generate a full hard area & perimeter worksheet →

How to use it

• Pick a difficulty above and hit generate — you get 20 problems instantly.
• Toggle the answer key on or off before you print.
• Hit “New problems” for a completely different sheet on the same skill.
• Every sheet has a permanent link, so you can reprint the exact same one next year.
• No signup, no ads on the printout. Pro ($19) raises the cap to 60 problems and prints A–F differentiated versions in one go.

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