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 20 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 triangles cut corner to corner from a square, two circles, one triangle, two squares side by side

Can make a squareCannot make a square

2.Sort each one into the right box.

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

Can make a squareCannot make a square

4.Sort each one into the right box.

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

Can make a squareCannot make a square

LessonPrint · K.G.B.6 · Set 20 · free to copy for classroom use

Answer key — Two Triangles Make a Square

Set 20. Prints on its own sheet.

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

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.