Grade 4 – Grade 6
Area and Perimeter Worksheets for Grade 4 to Grade 6
Algorithmically verified worksheets covering perimeter and area for rectangles, triangles, parallelograms, trapezoids, circles, and compound shapes. Printable PDF, instant answer key, in English and Thai.
Grade-by-grade coverage
Perimeter and area — rectangles & squares
Calculate the perimeter and area of rectangles and squares from given side lengths. Missing-side problems and simple word problems using locale-appropriate names and units. Large clear layout.
Area of triangles, parallelograms & trapezoids
Apply the correct formula for each shape — ½ × base × height for triangles, base × height for parallelograms, and ½ × (a + b) × h for trapezoids. Multi-step word problems with locale-appropriate context.
Circle area, circumference & compound shapes
Calculate circumference and area of circles using π. Compound (L-shape and composite) areas by adding or subtracting simpler shapes. Every problem is algorithmically generated — no repeats.
Why use MathPrepAI for area and perimeter practice?
Every problem is built from its answer using SymPy and verified before you see it — area and perimeter values are guaranteed correct, every time.
Bilingual worksheets in English and Thai: word problems adapt names, units (metres / feet), and phrasing to each language naturally.
Three difficulty levels (Easy · Medium · Hard) let you target the exact shapes and formula complexity your students need.
Instant PDF with a clean, automatically generated answer key — including formula steps. Print or share digitally.
Free tier: 30 worksheets per month, no credit card required.
Common questions
Are area and perimeter worksheets free?
Yes. The Free plan lets you generate up to 30 worksheets per month at no cost, with a watermark. Paid plans start at $6/month, remove the watermark, and allow unlimited generation.
Can I get Thai-language area worksheets?
Yes. Switch the language to Thai and word problems adapt automatically — Thai names, metric units (เมตร, ตารางเมตร), and natural Thai phrasing. The formula layout stays identical so worksheets work in bilingual classrooms.
How is this different from an AI worksheet generator?
AI generators like ChatGPT can produce wrong area or perimeter answers (hallucinations). MathPrepAI builds every problem from its exact answer using SymPy, a professional symbolic math library, then verifies the result before you see it. The answer key is guaranteed correct.
Can I target specific shapes — rectangles only, or circles only?
Yes. Use the difficulty level to guide the shape range: Easy focuses on rectangles and squares (ideal for early Grade 4), Medium adds triangles and parallelograms, and Hard introduces trapezoids, circles, and compound shapes. Combine with the problem count and language to get exactly the worksheet your class needs.
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