Description
Slide 1 : EXAMPLE 4 Standardized Test Practice SOLUTION By Theorem 9.3, the rotation is an isometry, so corresponding side lengths are equal. Then 2x = 6, so x = 3. Now set up an equation to solve for y. Corresponding lengths in an isometry are equal. Substitute 3 for x. Solve for y.
Slide 2 : GUIDED PRACTICE for Example 4
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