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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 2 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: two half circles, three squares in a row, two triangles cut corner to corner from a square, nine small squares in rows of three

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

Sort: four triangles cut from a square, two squares side by side, a circle and a triangle, two half circles

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

Sort: two circles, nine small squares in rows of three, three squares in a row, four small squares

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

Sort: three squares in a row, two circles, two half circles, a circle and a triangle

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

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

Can make a squareCannot make a square

LessonPrint · K.G.B.6 · Set 2 · free to copy for classroom use

Answer key — Two Triangles Make a Square

Set 2. Prints on its own sheet.

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

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.