# working model to represent different types of triangles using cardboard

Creating a working model to represent different types of triangles using cardboard, colored paper, two holes, and rotation with a nut and bolt can be a hands-on and interactive project.

Here’s a simple DIY project for a rotating triangle model:

## Materials Needed:

1. Cardboard
2. Colored paper
3. Ruler
4. Pencil
5. Scissors
6. Nut and bolt
7. Hole puncher or drill
8. Glue or tape
9. Markers

## Types of Triangles to Represent:

1. Equilateral Triangle
2. Isosceles Triangle
3. Scalene Triangle
4. Right Triangle
5. Acute Triangle
6. Obtuse Triangle

## Steps to Create the Rotating Triangle Working Model:

Step 1: Prepare the Base:

• Cut a large piece of cardboard to serve as the base for your working model.

Step 2: Draw and Cut Triangles:

• Draw and cut out each type of triangle from colored paper. Make sure the triangles are large enough to be visible on the cardboard.

Step 3: Attach Triangles to Cardboard:

• Glue or tape each triangle onto the cardboard, leaving space between them.

Step 4: Create Holes:

• Use a hole puncher or drill to create a hole near one vertex of each triangle. Make sure the holes are aligned.

Step 5: Nut and Bolt Assembly:

• Assemble a nut and bolt through the holes of the triangles. Tighten the nut, allowing the triangles to rotate.

Step 6: Label the Triangles:

• Label each triangle with its respective type (e.g., Equilateral, Isosceles, Scalene, Right, Acute, Obtuse).

Step 7: Display and Demonstrate:

• Set up your rotating triangle working model at the exhibition table.
• Rotate the triangles using the bolt to demonstrate different types of triangles.

This rotating triangle working model provides an interactive and dynamic way to showcase different types of triangles using a nut and bolt mechanism.