# 5.7 notes - TeacherWeb

```5-7 Pythagorean Theorem and simplifying radical expressions
Trigonometry Unit
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Perfect Squares________________________________________________________
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You know when an expression containing square roots is in simplest form when:
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Example 1: Simplify
20
Example 2: Simplify
68
Example3:
20 *
20
Example 4:
128c6
Example 5:
3x 2 * 3 3x 4
Rationalize the denominator________________________________________
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Example 6:
9
18
Example 7:
8
24
Pythagorean Triple
Example 1: Using the Pythagorean Theorem
Example 2: Using the Pythagorean Theorem