which pattern blocks can be combined to make the shape rhombus?

two equilateral triangles would make a rhombus

I don't remember all the shapes of pattern blocks.

To determine which pattern blocks can be combined to make the shape of a rhombus, we need to understand what a rhombus is and then analyze the attributes of different pattern blocks.

A rhombus is a parallelogram with four equal sides. Its opposite sides are parallel, and its opposite angles are equal. The diagonals of a rhombus are perpendicular and bisect each other.

Let's examine the different pattern blocks:

1. Triangle block: The triangle block is not suitable for creating a rhombus because it has three sides, and a rhombus requires four sides.

2. Square block: The square is also not suitable for creating a rhombus since it has four equal sides, but its angles are right angles. A rhombus requires opposite angles that are not right angles.

3. Rhombus block: The rhombus block itself can be combined to make the shape of a rhombus. Since it is already in the shape of a rhombus, you can use multiple rhombus blocks to form larger rhombus shapes.

In conclusion, the pattern block that can be combined to make the shape of a rhombus is the rhombus block itself.