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Grade 6 Surface Area of Prisms Worksheet with Answers

Grade 6 (US) · Year 7 (UK) · Class 6 (India) · Math

Unit 4: GeometryVolume & Surface AreaCCSS 6.G.A.4

Finding the surface area of cubes, rectangular prisms and triangular prisms by adding the areas of all their faces. This free middle school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Surface Area of Prisms

Grade 6 · Math

Score___ / 12

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Class

Date

Learning goal: Volume & Surface Area · CCSS 6.G.A.4

Directions: Use the pictures to help you. Solve each problem. Show your work, then write your answer in the box.

Example

Find the surface area of a cube with edges of 11 cm.

Answer: 726 cm²

RememberVolume

Rectangular prismV = l × w × hCubic unitsvolume = cubes that fill itcm³, m³, in³
  1. 1

    Find the surface area of a rectangular prism 15 cm long, 10 cm wide and 3 cm high.

    15 cm10 cm3 cm
    Answer
  2. 2

    Find the surface area of a rectangular prism 15 cm long, 8 cm wide and 10 cm high.

    15 cm8 cm10 cm
    Answer
  3. 3

    Find the surface area of a cube with edges of 2 cm.

    2 cm2 cm2 cm
    Answer
  4. 4

    A gift box is 12 cm × 3 cm × 11 cm. How much wrapping paper is needed to cover it exactly (no overlap)?

    Show your work
    Answer
  5. 5

    Find the surface area of a rectangular prism 6 cm long, 5 cm wide and 8 cm high.

    6 cm5 cm8 cm
    Answer
  6. 6

    Find the surface area of a rectangular prism 2 m long, 9 m wide and 10 m high.

    2 m9 m10 m
    Answer
  7. 7

    Find the surface area of a rectangular prism 10 m long, 11 m wide and 9 m high.

    10 m11 m9 m
    Answer
  8. 8

    Find the surface area of a rectangular prism 7 cm long, 12 cm wide and 6 cm high.

    7 cm12 cm6 cm
    Answer
  9. 9

    Find the surface area of a rectangular prism 2 m long, 2 m wide and 2 m high.

    2 m2 m2 m
    Answer
  10. 10

    Find the surface area of a cube with edges of 2 m.

    2 m2 m2 m
    Answer
  11. 11

    A gift box is 15 cm × 7 cm × 11 cm. How much wrapping paper is needed to cover it exactly (no overlap)?

    Show your work
    Answer
  12. 12

    Find the surface area of a rectangular prism 7 in long, 6 in wide and 2 in high.

    7 in6 in2 in
    Answer

★ Challenge corner for fast finishers

Three consecutive whole numbers add up to 39. What is the smallest number?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/math/6/surface_area

Answer key (click to show)
  1. 1.450 cm²
  2. 2.700 cm²
  3. 3.24 cm²
  4. 4.402 cm²
  5. 5.236 cm²
  6. 6.256 m²
  7. 7.598 m²
  8. 8.396 cm²
  9. 9.24 m²
  10. 10.24 m²
  11. 11.694 cm²
  12. 12.136 in²
  13. ★12 (challenge corner)

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