SaiBook.us Geometry

Example

Title: Computing Perimeter of Triangle

Grade: 2-a Lesson: S1-L8

Explanation: The best way to understand geometry is by looking at some examples. Take turns and read each example for easy understanding.

Examples:

Find the perimeter of this triangle.

Step 1a

Let’s say you have a triangle with side lengths:

Side 1: 6 feet

Side 2: 6 feet

Side 3: 8 feet

$1a$

Explanation: Triangle with sides 6 , 6 , and 8 feets.

Step 1b

Perimeter of a triangle = side1 + side2 + side3

⇒ 6 + 6 + 8

⇒ 20 feets.

Explanation: Add up the lengths of all three sides.Perimeter of the triangle is 20 feets.