SME
Kindergarten Math · Geometry
Join shapes to build new shapes
Use this for “Cover the hexagon with shape blocks. How many triangles fill the rest?”
Picture
Trapezoids: 1
Rhombuses: 1
Triangles: 1
This is an example. Type the numbers from your problem to start.
Trapezoids
example
Rhombuses
example
Triangles
answer
Number sentences
1 trapezoid + 1 rhombus + 1 triangle = 1 hexagon
Good to know
•
A hexagon is made of 6 triangles.
•
A trapezoid covers 3 triangles. A rhombus covers 2 triangles.
•
Cover the whole hexagon, with no gaps. Blocks don’t go on top of each other.
Step-by-step
WE KNOW
Trapezoids: 1
Rhombuses: 1
FIND
triangles
Step 1 · Find triangles
1 trapezoid + 1 rhombus + ? triangles = 1 hexagon
Count the empty triangle spaces. Put a triangle in each one.
1 trapezoid covers 3 triangles
1 rhombus covers 2 triangles
Covered: 3 + 2 = 5 triangles
Empty: 6 − 5 = 1
Triangles: 1
Check
Put the numbers back in. Both sides should match.
3 + 2 + 1 = 6 triangles ✓
Topic check
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