# 3.7 Two-dimensional Shapes and Perimeter

## Unit Goals

- Students reason about shapes and their attributes, with a focus on quadrilaterals. They solve problems involving the perimeter and area of shapes.

### Section A Goals

- Reason about shapes and their attributes.

### Section B Goals

- Find the perimeter of two-dimensional shapes, including when all or some side lengths are given.

### Section C Goals

- Solve problems involving perimeter and area, in and out of context.

### Section D Goals

- Apply geometric understanding to solve problems.