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Surface Area - Worksheet 5 - 6th Grade

Medium

Use labeled dimensions to calculate surface area and explain the units.

medium: Use larger dimensions or combine parts.

14 problems · 20-30 minutes · Skills: geometry, surface area, formulas

About This Worksheet

This medium-level worksheet contains 14 problems designed for 6th Grade students practicing surface area. Medium worksheets introduce larger numbers and varied question formats to deepen understanding and build fluency.

Read labeled dimensions and coordinates. Recall multiplication facts and length units.

  • Use labeled dimensions to calculate surface area and explain the units.
  • Check your result using the method in the example before moving to the next question.

How to Solve: Worked Example

Example Problem: A closed rectangular prism measures 5 cm by 7 cm by 4 cm. Find its total surface area.
Solution Steps:
  1. Add the areas of all six faces: 2lw + 2lh + 2wh.
Answer: 166 cm²
Tip: Check your result using the method in the example before moving to the next question.
1
A closed rectangular prism measures 4 cm by 7 cm by 3 cm. Find its total surface area.
2
A closed rectangular prism measures 11 cm by 7 cm by 4 cm. Find its total surface area.
3
A closed rectangular prism measures 7 cm by 3 cm by 2 cm. Find its total surface area.
4
A closed rectangular prism measures 11 cm by 2 cm by 3 cm. Find its total surface area.
5
A closed rectangular prism measures 7 cm by 7 cm by 3 cm. Find its total surface area.
6
A closed rectangular prism measures 11 cm by 5 cm by 5 cm. Find its total surface area.
7
A closed rectangular prism measures 11 cm by 2 cm by 9 cm. Find its total surface area.
8
A closed rectangular prism measures 5 cm by 8 cm by 6 cm. Find its total surface area.
9
A closed rectangular prism measures 8 cm by 5 cm by 9 cm. Find its total surface area.
10
A closed rectangular prism measures 6 cm by 6 cm by 3 cm. Find its total surface area.
11
A closed rectangular prism measures 5 cm by 8 cm by 3 cm. Find its total surface area.
12
A closed rectangular prism measures 6 cm by 9 cm by 3 cm. Find its total surface area.
13
A closed rectangular prism measures 11 cm by 4 cm by 5 cm. Find its total surface area.
14
A closed rectangular prism measures 5 cm by 9 cm by 6 cm. Find its total surface area.

Answer Key

1. 122 cm²2. 298 cm²3. 82 cm²4. 122 cm²5. 182 cm²6. 270 cm²7. 278 cm²8. 236 cm²9. 314 cm²10. 144 cm²11. 158 cm²12. 198 cm²13. 238 cm²14. 258 cm²

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What skills does this geometry worksheet cover?

This worksheet focuses on geometry, surface area, formulas. It is designed for 6th Grade students and provides structured practice through varied problem types with a worked example to guide students before they begin.

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How many problems are on this worksheet?

This worksheet contains 14 problems. It typically takes 20-30 minutes to complete. An answer key with all solutions is included so parents and teachers can check work quickly.