A partialy completed proof in shown. Given: KM 1 KJ and KM 1 MN LJ & ZN Prove ΔΚLJ -ΔΜLN Statement Reason 1 KM I KJ and KM 1 MN 1. Given 2. ZJKL and ZNML are right angles 2. 3. Al right angkes are congruent. 4 AKLJ - A MLN 4. Select the comect reason that justifies Statement 4 O SAS Similarity Crtenon O AA Similarity Criterion O ASA Similarty Criterion O sss Similarity Criterion
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.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
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