Perimeter and Scale Factors

The video tutorial covers the concept of making scaled copies of polygons using different scale factors. It includes drawing scaled copies of polygons A, B, and C, calculating the perimeter of a scaled quadrilateral, and drawing a scaled polygon on a grid. The tutorial concludes with a discussion on identifying scaled copies among given figures.

What is the scale factor used to create a scaled copy of polygon A?

• 1/2

• 1

• 3/2

• 2

If a polygon is scaled by a factor of 1/2, what happens to its dimensions?

• They triple

• They halve

• They remain the same

• They double

What scale factor is used to create a scaled copy of polygon C?

• 1/2

• 3/2

• 2

• 1

What is the shortest side length of quadrilateral B?

• 12

• 2

• 6

• 9

What is the scale factor from quadrilateral A to B?

• 1/2

• 1/3

• 2

• 3

What is the perimeter of quadrilateral B?

• 6

• 15

• 9

• 12

How do you calculate the perimeter of a scaled quadrilateral?

• Divide all side lengths

• Add all side lengths

• Multiply all side lengths

• Subtract all side lengths

What is the original perimeter of the polygon on the grid?

• 30

• 40

• 20

• 10

What scale factor is needed to increase the perimeter from 10 to 30 units?

• 4

• 3

• 2

• 1

If a polygon's perimeter is tripled, what happens to its side lengths?

• They remain the same

• They double

• They halve

• They triple