Trigonometric identities are mathematical equations that involve trigonometric functions. These identities are true for all possible values of the variables within their respective domains. Understanding and utilizing these identities are essential in solving trigonometric equations and simplifying expressions in trigonometry.

### working model for trigonometric identities making

Creating a working model for trigonometric identities using cardboard and colored paper can be an effective way to visualize and understand these mathematical concepts.

Let’s focus on the Pythagorean identities as an example.

Here’s a step-by-step guide to help you build a model:

**Materials Needed:**

- Cardboard sheets
- Colored paper (preferably in different shades)
- Scissors
- Glue
- Ruler
- Pencil
- Markers or colored pencils