Cone Section Projection – full-color hidden picture puzzle with 10 objects to find
Color version — explore the scene and find all 10 hidden objects.

Choose a version to take a closer look. Line art doubles as a coloring page. Open the answer key when you are ready to check your finds.

Everyday Life & Learning

Cone Section Projection

Use this printable hidden picture for a Everyday Life & Learning search-and-find activity for children ages 10–12. Find 10 hidden objects, including height gauge, section frame and protractor. Difficulty: hard (L3). Includes Color / Line art / Answer key. Use Line art for coloring. Check your finds with the Answer key. Browser printing can also save as PDF. Scene: Cone Section Projection.

At a mathematics museum observation table, a student holds the outer handle of a tilted section frame while a teacher steadies the cone base and a partner watches. A rear support holds the removable upper cone section above a prepared angled slot.

Difficulty
L3
Suggested age
10–12 years
Art style
Paper-Cut Collage
Hidden objects
10
Format
Printable Color, line art & answer key
Print / Save as PDFOpen line art image

3-page print layout: 1. Color · 2. Line art · 3. Answer key.
Choose Print, then your printer or Save as PDF. Choose page 2 to print just the line art.
Free for personal and classroom use. No sign-up needed.

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Can you find them all?

  • height gauge
  • section frame
  • protractor
  • cross-section disk
  • polyhedron model
  • solid projection stand
  • transparent semicircle block
  • compass tool
  • drawing board
  • pencil

A little about this puzzle

At a mathematics museum observation table, a student holds the outer handle of a tilted section frame while a teacher steadies the cone base and a partner watches. A rear support holds the removable upper cone section above a prepared angled slot. A shallow sample tray and a nearby recording table hold other geometry tools. The paper-cut collage scene has a two-row key with five objects per row. Find ten objects: height gauge, section frame, protractor, cross-section disk, polyhedron model, solid projection stand, transparent semicircle block, compass tool, drawing board, and pencil.

Make it your own

Search on your own, compare discoveries with a partner, or color the line art after finding the objects. Keep the Answer key separate until you are ready to check.

Read the how-to-play guide for the full steps, or browse all puzzles to choose another theme, age range or difficulty.

Everyday Life & Learning words to spot and say

Read the 10 object names together before searching. Say each word, look at its shape, and then find the matching object in the scene.

Object words and observation prompts for this puzzle
WordMeaning or search cueSay it
height gaugeFind the object named height gauge. Compare its outline and small details with the matching shape in the scene.Say height gauge aloud. Can you describe its shape without pointing to it?
section frameFind the object named section frame. Compare its outline and small details with the matching shape in the scene.Say section frame aloud. Can you describe its shape without pointing to it?
protractorFind the object named protractor. Compare its outline and small details with the matching shape in the scene.Say protractor aloud. Can you describe its shape without pointing to it?
cross-section diskFind the object named cross-section disk. Compare its outline and small details with the matching shape in the scene.Say cross-section disk aloud. Can you describe its shape without pointing to it?
polyhedron modelFind the object named polyhedron model. Compare its outline and small details with the matching shape in the scene.Say polyhedron model aloud. Can you describe its shape without pointing to it?
solid projection standFind the object named solid projection stand. Compare its outline and small details with the matching shape in the scene.Say solid projection stand aloud. Can you describe its shape without pointing to it?
transparent semicircle blockFind the object named transparent semicircle block. Compare its outline and small details with the matching shape in the scene.Say transparent semicircle block aloud. Can you describe its shape without pointing to it?
compass toolFind the object named compass tool. Compare its outline and small details with the matching shape in the scene.Say compass tool aloud. Can you describe its shape without pointing to it?
drawing boardFind the object named drawing board. Compare its outline and small details with the matching shape in the scene.Say drawing board aloud. Can you describe its shape without pointing to it?
pencilA writing or drawing tool with a solid core inside a casing.Say pencil aloud. Can you describe its shape without pointing to it?

Write a short list of the object names, or describe one find while a partner guesses the word. Then return to the picture and look for the next object. See the how-to-play guide for more ways to use the pages.

Printing tips for this puzzle

What is in the three pages?
Page 1 is Color for a picture search, page 2 is Line art for finding and coloring, and page 3 is the Answer key. Switching the preview above does not change this three-page print layout.
Paper size and fit
The print layout uses Letter paper (8.5 × 11 inches) with space around the artwork. For A4, choose Fit to page and check the print preview so every border stays visible. Turn off browser headers and footers to avoid extra dates and URLs.
Print only the page you need
Choose page 2 in the print dialog to print just the Line art. Use it as a coloring sheet or an ink-friendly search page. Choose page 1 for Color, or page 3 for a separate Answer key.
Keep the answer separate
Leave the Answer key on screen until you finish, or print page 3 separately. For a group activity, use individual search pages so everyone can mark their own discoveries at their own pace.
Save a copy from your browser
After the three images finish loading, choose Print and select your printer or Save as PDF. Check the selected page numbers before saving. Personal, family and your own classroom or group use follow the site terms.

Questions about this puzzle

How many objects are hidden in this puzzle?

There are 10 objects to find: height gauge, section frame, protractor, cross-section disk, polyhedron model, solid projection stand, transparent semicircle block, compass tool, drawing board, pencil. Use the separate Answer key when you are ready to check their locations.

What age is this puzzle for?

The suggested age is 10–12 years. Ages and difficulty are guides: choose a version that feels comfortable, and work together if helpful.

Can I print only the line art page?

Yes. Choose page 2 in the three-page print dialog. Line art can be used on its own for finding and coloring. Page 1 is Color and page 3 is the Answer key.

Do I need an account to print?

No sign-up is needed to print this free set. Open Print / Save as PDF, wait for the three pages to load, and choose your printer or Save as PDF.

Can I use this in a classroom or co-op?

Free puzzles and purchased sets can be printed for personal use, your family, or your own classroom or group under the site terms. Reselling, repackaging or uploading the files to another public website is not included.

Read the usage terms for classroom and group permissions, or contact us if something on this page needs attention.

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