Iven: abc and fgh are right angles; ba||gf; bc ? gh prove: abc ? fgh step 1: we know that abc ? fgh because all right angles are congruent. step 2: we know that bac ? gfh because corresponding angles of parallel lines are congruent. step 3: we know that bc ? gh because it is given. step 4: abc ? fgh because of the

Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played she found that the restaurant was playing country 11 times rock & roll 17 times and blues 8 times use the observed frequencies to create a probability model for the type of music the restaurant is playing the next time mahnoor walks in.