Grade 6 · Geometry · 6.G.A.4
Nets and Surface Area Worksheets
Free, printable, and ready to teach: a practice worksheet, homework, an exit ticket, and an answer key with step-by-step solutions — plus lesson slides you can edit. No sign-up needed.
Open the practice worksheet
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- PDFPractice worksheet4 pages · 9 questions
- PDFHomework3 pages · 8 questions
- PDFExit ticket2 pages · 4 questions
- PDFAnswer key with step-by-step solutions7 pages · covers every sheet
- PDFLesson slides8 slides · print or present
- PPTXEditable slidesPowerPoint · opens in Google Slides & Keynote
PDFs print on US Letter paper. Free for classroom and home use.
Watch: 3-D Figures & Nets: Step By Step Guide
Key idea
Surface area = the area of the whole net. A rectangular prism has 6 faces in 3 matching pairs: SA = 2(lw) + 2(lh) + 2(wh). A cube is the special case: SA = 6s². Square units, always — you are covering, not filling.
Sample problems
- Find the surface area of a cube with edge 2 units.
- Find the surface area of a prism 3 by 3 by 5 units.
- Find the surface area of a cube with edge 5 units.
- Find the surface area of a prism 6 by 4 by 2 units.
Common mistakes to watch for
- Answered 27 — that is the VOLUME (3 × 3 × 3), not the surface area.
- Added only 12 + 6 + 8 = 26, counting three faces instead of six. Every face has a twin on the opposite side.
- Answered 60 — that is the volume 5 × 2 × 6.
The answer key explains each one, so you can tell what a wrong answer means.
How to use this set
- Teach with the slides (about 15 minutes), or watch the video together.
- Practice with the worksheet. Questions climb from fluency to application to reasoning.
- Check understanding with the exit ticket, and send the homework home.
- Mark with the answer key — each answer shows the steps and the most likely mistake.
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