Calculating the Perimeter of Polygons

The video tutorial explains the concept of perimeter in geometry, starting with its basic definition as the distance around a shape. It covers how to calculate the perimeter of various polygons, including rectangles, squares, triangles, and irregular polygons. The tutorial also touches on the challenges of calculating perimeters when curvature is involved, hinting at the need for calculus in such cases. The video concludes with a brief mention of circles, setting the stage for further exploration of curved shapes.

What is the perimeter of a shape in geometry?

• The area inside a shape

• The distance around a shape

• The height of a shape

• The volume of a shape

How do you calculate the perimeter of a rectangle?

• Add the length and width

• Add twice the length and twice the width

• Multiply the length by four

• Multiply the length by the width

If a rectangle has a perimeter of 24 and its length is three times its width, what is the width?

• 2

• 5

• 3

• 4

Which theorem is used to find the missing side of a right triangle?

• Sine rule

• Triangle inequality theorem

• Cosine rule

• Pythagorean theorem

How can you find the missing side lengths of an irregular polygon?

• By imagining a rectangle behind the shape

• By using the volume formula

• By using the area formula

• By measuring the angles