ork for Int Math II 7 452 Name: UNIT 5 • SIMILARITY, RIGHT TRIANGLE TRIGONOMETRY, AND PROOF Lesson 3: Defining and Applying Similarity Date: Practice 5.3.1: Defining Similarity Find all the angle measures and side lengths for each triangle of the given similar pairs. 1. AABC~ADEF 1.5 E133 A 10 | 2. AJKL~AMNP 14 13.4 6.7 4.9 /1407 7. continued SWB p. 49; SRB Practice 5.3.1 p. US-53 Walch Education US-98 CCSS IP Mathil Teacher Resource 53.1 Date: Name: LORITY BIGHT TRIANGLE TRIGONOMETRY, AND PROOF

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Permutations and Combinations

If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.

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The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.