Still Confused?

Try reviewing these fundamentals first

Still Confused?

Try reviewing these fundamentals first

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Start now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started NowStart now and get better math marks!

Get Started Now- Intro Lesson: a6:23
- Intro Lesson: b3:45
- Intro Lesson: c10:40
- Lesson: 1a2:37
- Lesson: 1b1:29
- Lesson: 1c2:38
- Lesson: 2a2:20
- Lesson: 2b3:02
- Lesson: 2c6:48
- Lesson: 3a9:08
- Lesson: 3b11:09
- Lesson: 3c12:15
- Lesson: 45:44

In this lesson, we will learn:

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

- A
**triangle**is a 2D shape with 3 straight sides and 3 angles that add up to 180° - There are different types
**triangles**(classified by side lengths or angle size), but it does not change the**formulas**for area and perimeter. - 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
**triangles**, the**formula**is written as: **P**=_{triangle}**side**+_{1}**side**+_{2}**side**_{3}- This formula does
__not__change for different types of**triangles**

- 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
**triangles**, the**formula**is written as: **Area**= $\large \frac{b \, \times \, h} {2}$_{triangle}- Where $b$ is base, and $h$ is height
- This formula does not change for different types of triangles, but you do need to keep in mind how to find the
**triangle’s height** - The
**triangle’s base**is any of the three straight sides **The triangle’s height**is found by placing the chosen base as the flat bottom, and then drawing a perpendicular line from that until the highest point (**vertex**); it can also be called the triangle’s**altitude**

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

Calculate the perimeter of each triangle.a)

b)

c)

- 2.
**Area of Triangles**

Calculate the area of each triangle.a)

b)

c)

- 3.
**Perimeter and Area of Compound Triangle Shapes**

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

b)

c)

- 4.
**Triangles Word Problem**

The side of a skateboard ramp is a right triangle. What is the perimeter and area of the side of a skateboard ramp that has the following measurements: base=20m, height=15m, slope=25m