(I am asking this question one more time) Please tell me the steps and use fractions.
A shape is randomly selected from the following quadrilaterals: parallelogram,
rhombus, rectangle, square, and trapezoid. What is the probability that it has four right angles, given that it has four congruent sides?
So, it's hard to know if the sides on the parallelogram are equal or not, but both a rhombus and square have four congruent sides, but only a square has four right angles.
So 1/2 shapes fit both parameters. Therefore there is a 50% probability it has four right angles, given that it has four congruent sides.
