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

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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, a circle and a triangle, two rectangles cut from a square, two circles

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

Sort: four triangles cut from a square, a circle and a triangle, three squares in a row, two triangles cut corner to corner from a square

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

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

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

Sort: one triangle, a circle and a triangle, two triangles cut corner to corner from a square, two rectangles cut from a square

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

Sort: two circles, four small squares, one triangle, two half circles

Can make a squareCannot make a square

LessonPrint · K.G.B.6 · Set 11 · free to copy for classroom use

Answer key — Two Triangles Make a Square

Set 11. Prints on its own sheet.

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