Two triangles make a rhombus. So a rhombus is made of shapes too.
Step 1: Let's Learn
Read it, or press Listen and follow the words.
Use it as a piece
Three rhombuses fill the hexagon. Each one is really two triangles.
3 rhombuses is the same as 6 triangles. Both fill the hexagon.
A shape can be a whole and a part
The square you built from two triangles can become one tile in a bigger pattern. Whether it is a part or a whole depends on the question.
This is where fractions begin
Seeing a shape as made of equal pieces is exactly what a fraction is. You are doing it before it has a name.
Step 2: Try It Yourself
The dotted lines show the triangles hiding inside.
It takes 3 rhombuses to fill the hexagon.
Each rhombus is made of triangles too. The dotted lines show them.
Step 3: Watch an Example
One step at a time.
Watch Ana Look Inside
Ana fills a hexagon with 3 rhombuses.
- Step 1
She sees the dotted line inside each rhombus.
Step 4: Your Turn
Practice makes it stick.
Counting the Small Pieces
Problem 1 of 1
A trapezoid is 3 triangles. How many triangles are in 2 trapezoids?
How Many Triangles?
1 of 3
How many triangles make one rhombus?
2 of 3
How many triangles make one trapezoid?
3 of 3
How many triangles are in 3 rhombuses?
Step 5: Quick Check
Show what you know.
Question 1 of 2
How many triangles make one trapezoid?
Question 2 of 2
Can a piece be made of smaller pieces?
What You Learned
- A shape you build can be used as a piece.
- A rhombus is 2 triangles. A trapezoid is 3.
- Bigger pieces mean fewer pieces, not less shape.