# Pythagorean Identities in Trigonometry: Definition & Examples

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

### What is the hypotenuse of the right triangle formed from the unit circle?

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### 2. What is sine2 + cosine2?

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This quiz consists of several math questions that involve the three Pythagorean identities. You'll also need to remember the Pythagorean theorem in order to pass.

## Quiz & Worksheet Goals

Evaluate your understanding of the following:

• The hypotenuse of a right triangle formed from the unit circle
• What is or isn't a Pythagorean identity
• Sine squared plus cosine squared
• Cosecant squared minus cotangent squared
• Secant squared

## Skills Practiced

• Critical thinking - apply relevant concepts to examine what is and is not a Pythagorean identity in a different light
• Problem solving - use acquired knowledge to solve practice problems, like what secant squared equals
• Distinguishing differences - differentiate between the three Pythagorean identities