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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 22 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: a circle and a triangle, two circles, two rectangles cut from a square, three squares in a row

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

Sort: two triangles cut corner to corner from a square, two squares side by side, two circles, four small squares

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

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

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

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

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

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

Can make a squareCannot make a square

LessonPrint · K.G.B.6 · Set 22 · free to copy for classroom use

Answer key — Two Triangles Make a Square

Set 22. Prints on its own sheet.

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

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.