Finding the Perimeter of Geometric Shapes

Finding the Perimeter of Geometric Shapes

By Sola Mailo

• Lesson Objective

• Vocabulary Words

• Formular for finding the Perimeter

• Introduction to Perimeter (Video)

• Class discussion

• Class activity

• ​Class Review

• Homework​

​Table of Contents

Students will be able to find the perimeter of different shapes by following one formula

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​Lesson Objective

The standard amount of ​quantity used for measuring things.

• length

  • ​meter, inches, etc...

• mass or wieght

  • grams, pounds, etc.​

​Units

It is a measurement around the shape. ​

​Perimeter

Vocabulary Words

"add ALL sides"

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Perimeter = Add ALL sides or P = Add all sides

Finding Perimeter

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​Let's watch a small video clip to elaborate more

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Multiple Choice

Find the Perimeter

• 45 in

• 35 in

• 40 in

• 30

Multiple Choice

What is the perimeter of this triangle?

• 9 in

• 10 in

• 11 in

• 12 in

Multiple Choice

Find the Perimeter

• 12 in

• 15 in

• 18 in

• 9 in

Multiple Choice

Perimeter is equal to _______

• 4 in

• 6 in

• 8 in

• 10 in

Multiple Choice

What is the Perimeter?

• 5 in

• 6 in

• 7 in

• 8 in

Poll

What is the formula to find the perimeter of most polygons?

• Add ALL sides

• Count all sides

​Our Class assignment is already posted on our Google Classroom.