Let ABC be a triangle. On the opposite ray of AB take a point D on the opposite ray of AC take point E such that AD = AE a) What shape is the quadrilateral EBDC? Prove
b) Calculate the length of CD. Know AC=6 AD=2

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.