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in a rhombus mpkn with an obtuse angle k the diagonals intersect each other at point e. the measure of one of the angles of a ∆pke is equal 16°. find the measures of all angles of ∆pke and δpmn.

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?