Skip to content
LessonPrint

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

Next setLesson plan

One paper per student

12345678910111213141516171819202122232425

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, nine small squares in rows of three, two circles, two rectangles cut from a square

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

Sort: one triangle, two half circles, four triangles cut from a square, 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: four small squares, two squares side by side, two triangles cut corner to corner from a square, nine small squares in rows of three

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

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

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

Sort: nine small squares in rows of three, four triangles cut from a square, one triangle, two squares side by side

Can make a squareCannot make a square

LessonPrint · K.G.B.6 · Set 9 · free to copy for classroom use

Answer key — Two Triangles Make a Square

Set 9. Prints on its own sheet.

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