11.9 SA Cones - Cone Surface Area Worksheet

Sep 18, 2026

Worksheet focused on finding the surface area of cones. Students calculate surface area for multiple numbered problems and round each result to the nearest tenth, using π = 3.14. The document includes problem prompts organized by cases with given measurements in centimeters, inches, feet, and meters. An answer key provides the expected surface area values for the listed cones, supporting checking and review of each calculation.

LanguageEnglish

CategoryExam

FormatPDF

Pages4

Reading Time10 min

AccessFree to download

Surface Area - Cone Problems

Instructions

Answer Key

Name : Score : | Surface Area-Cone
Find the surface area of each cone. Round the answer to nearest tenth. ( use π = 3.14 ) | | --- | | 1)
4)
7)

Surface Area =
5 cm

Surface Area =

8 in
Surface Area =
2)
5)
8)

Surface Area =

14 ft
Surface Area =

Surface Area =
3)

Surface Area =
6)

Surface Area =
9)

Surface Area =

| [Printable Math Worksheets @](Printable Math Worksheets @ www.mathworksheets4kids.com)[ www.mathworksheets4kids.com](Printable Math Worksheets @ www.mathworksheets4kids.com) Name : Score : | Surface Area-Cone
Find the surface area of each cone. Round the answer to nearest tenth. ( use π = 3.14 ) | | | | --- | --- | --- | | 1) 2)

Surface Area =
4) 5)

Surface Area =
7) 8)

21 m

Surface Area = | 10 in

Surface Area =

Surface Area =
5 1 cm

44 cm
Surface Area = | 3)

Surface Area =
6)

Surface Area =
9)
4 m

12 m

Surface Area = | [Printable Math Worksheets @](Printable Math Worksheets @ www.mathworksheets4kids.com)[ www.mathworksheets4kids.com](Printable Math Worksheets @ www.mathworksheets4kids.com) Name : Score : | Answer Key

Find the surface area of each cone. Round the answer to nearest tenth. ( use π = 3.14 ) | | | | | | | --- | --- | --- | --- | --- | --- | | 1) |
| 2) | | 3) | | | | | | | 6 m
14 m
| | | Surface Area = 94.2 m2 Surface Area = 459.2 ft2 Surface Area = 376.8 m2 | | | | | | | 4) | | 5) | | 6) |
| | Surface Area =
7)

8
Surface Area =

83.2 cm2 Surface Area = 578.4 ft2 Surface Area = 113 in2
8) 9)
8 m

12 cm

5 cm
173.9 in2 Surface Area = 653.1 m2 Surface Area = 282.6 cm2 | | | | | | [Printable Math Worksheets @](Printable Math Worksheets @ www.mathworksheets4kids.com)[ www.mathworksheets4kids.com](Printable Math Worksheets @ www.mathworksheets4kids.com) Name : Score : | Answer Key

Find the surface area of each cone. Round the answer to nearest tenth. ( use π = 3.14 ) | | | | --- | --- | --- | | 1) 2)

Surface Area = 7032.2 in2
4) 5)

Surface Area = 452.7 m2
7) 8)

21 m

Surface Area = 615.4 m2 | 10 in

Surface Area = 122.5 in2

Surface Area = 5049.1 ft2
5 1 cm

44 cm
Surface Area = 5356.7 cm2 | 3)

Surface Area = 358 cm2
6)

9)
Surface Area = 3509.5 ft2

12 m

Surface Area = 87.9 m2 | [Printable Math Worksheets @](Printable Math Worksheets @ www.mathworksheets4kids.com)[ www.mathworksheets4kids.com](Printable Math Worksheets @ www.mathworksheets4kids.com)

FAQs

What formula information does the worksheet require for cone surface area problems?

Use π = 3.14 when computing surface area for each cone.

How should students format their final answers?

Round each surface area result to the nearest tenth.

Where can students find the correct results?

The worksheet includes an Answer Key section with the expected surface area values for the listed problems.

Sep 18, 2026

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