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Two Triangles Make a Square is a free printable Kindergarten math worksheet on composing a larger shape from smaller ones, aligned to Common Core standard K.G.B.6. It prints 5 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 15 of 25 · the same problems every time you open this link.

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One paper per student

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Two Triangles Make a Square

K.G.B.6

NameDate

Sort each one into the right box.

1.Sort each one into the right box.

Sort: three squares in a row, two half circles, four triangles cut from a square, four small squares

Can make a squareCannot make a square
2.Sort each one into the right box.

Sort: four small squares, two rectangles cut from a square, nine small squares in rows of three, a circle and a triangle

Can make a squareCannot make a square
3.Sort each one into the right box.

Sort: two rectangles cut from a square, one triangle, four small squares, two squares side by side

Can make a squareCannot make a square
4.Sort each one into the right box.

Sort: two circles, three squares in a row, four triangles cut from a square, one triangle

Can make a squareCannot make a square
5.Sort each one into the right box.

Sort: two rectangles cut from a square, two triangles cut corner to corner from a square, nine small squares in rows of three, two squares side by side

Can make a squareCannot make a square

LessonPrint · K.G.B.6 · Set 15 · free to copy for classroom use

Answer key — Two Triangles Make a Square

Set 15. Prints on its own sheet.

  1. 1.Can make a square: four triangles cut from a square, four small squares; Cannot make a square: three squares in a row, two half circles
  2. 2.Can make a square: four small squares, two rectangles cut from a square, nine small squares in rows of three; Cannot make a square: a circle and a triangle
  3. 3.Can make a square: two rectangles cut from a square, four small squares; Cannot make a square: one triangle, two squares side by side
  4. 4.Can make a square: four triangles cut from a square; Cannot make a square: two circles, three squares in a row, one triangle
  5. 5.Can make a square: two rectangles cut from a square, two triangles cut corner to corner from a square, nine small squares in rows of three; Cannot make a square: two squares side by side

More practice for K.G.B.6

Put small shapes together to build bigger ones.

Teaching this next? Building Bigger Shapes from Smaller is the 30-minute plan for it, with the misconceptions to expect.

All Kindergarten worksheets

Last reviewed 2026-09-05. Aligned to K.G.B.6 of the Common Core State Standards for Mathematics.