Easy math points- pls a . suppose the measure of one side of a triangle inscribed in a circle is 20 centimeters. if the measure of the angle in the triangle opposite this side is 30 degrees, what is the length of the diameter of the circle? b. suppose a circle with a diameter of 12.4 inches circumscribes a triangle with one side of the triangle measuring 4.6 inches. what is the measure of the angle in the triangle opposite this side?

Achild has a box full of colored building blocks. she will choose one block without looking. the odds against choosing a blue block are 4/7. what is the probability of choosing a blue block? amanda is playing a role-playing game with her friends. she will roll dice to determine if her character unlocks a treasure chest. the probability of her character unlocking the treasure chest is 13/20. find the odds in favor of her character unlocking the treasure chest.