### Home > CCG > Chapter 2 > Lesson 2.1.1 > Problem 2-9

2-9.

Mei puts the shapes below into a bucket and asks Brian to pick one out. Homework Help ✎

What is the probability that he pulls out a quadrilateral with parallel sides?

Identify the shapes that are quadrilaterals with a

. Identify the shapes that have parallel sides with a

. Write a fraction where the numerator is the number of shapes that have both parallel sides and four sides, and where the denominators the total number of shapes.

What is the probability that he pulls out a shape with rotation symmetry?