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- Polygons

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Get Started Now- Intro Lesson: a8:41
- Intro Lesson: b7:00
- Intro Lesson: c11:02
- Lesson: 1a2:02
- Lesson: 1b1:32
- Lesson: 1c3:19
- Lesson: 1d2:17
- Lesson: 2a1:54
- Lesson: 2b2:18
- Lesson: 2c3:28
- Lesson: 2d5:01
- Lesson: 3a10:11
- Lesson: 3b11:54
- Lesson: 3c11:26
- Lesson: 45:53
- Lesson: 55:11

In this lesson, we will learn:

- The basic properties of the shape of the rectangle
- How to understand and calculate the perimeter of a rectangle
- How to understand and calculate the area of a rectangle

- A
**rectangle**is a 2D (two-dimensional) shape with 4 straight sides and 4 right angles (90°) - Each pair of sides (across from each other) are the exact same length

- A
**square**is a special type of rectangle where all side lengths are the same

- The
**perimeter**is the exact distance around the shape. - Perimeter is a 1D (one-dimensional) quantity
- It uses
**units**such as meters (m, cm, mm, km), miles (mi), yards (yd), or inches and feet (in and ft) - For
**rectangles**, the**formula**is written as: **P**= $(2 \, \times \, l) + (2 \, \times \, w)$_{rectangle}- Where $l$ is length, and w is width
- For
**squares**, the**formula**is written as: -
**P**= $4 \, \times \, s$_{rectangle} - Where $s$ is side length
- The
**area**is the space that is covered by the shape. - Area is a 2D (two-dimensional) quantity
- It uses
such as square meters (m__squared__units^{2}, cm^{2}, mm^{2}, km^{2}), square miles (mi^{2}), square yards (yd^{2}), or square inches and feet (in^{2}and ft^{2}) - For
**rectangles**, the**formula**is written as: **A**= $l \, \times \, w$_{rectangle}- Where $l$ is length, and w is width
- For
**squares**, the**formula**is written as: **A**= $s \, \times \, s \, = \, S^{2}$_{square}- Where $s$ is side length

- IntroductionIntroduction to Area and Perimeter of Rectangles:a)What are the basic properties of a rectangle?b)How do you calculate the perimeter of a rectangle?c)How do you calculate the area of a rectangle?
- 1.
**Perimeter of Rectangles**

Calculate the perimeter of each rectangle or square.a)

b)

c)

d)

- 2.
**Area of Rectangles**

Calculate the area of each rectangle or square.a)

b)

c)

d)

- 3.
**Perimeter and Area of Compound Rectangles**

Calculate the perimeter and area of each compound shape. Break down the complex shapes into components (rectangles) first!a)

b)

c)

- 4.
**Rectangles Word Problem - 1**

Pizza boxes are usually square. If a pizza box has a perimeter of 61 inches, what does it measure on each side? - 5.
**Rectangles Word Problem - 2**

A book's cover has a perimeter of 36 inches. The longer side is 10 inches. What is the area of the book cover?