Figures that have the same size and same shape. Their corresponding angles and sides are the same size.

If a || b and e || f , what if the value of y ?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air