Scale Factor- Perimeter and Area

What is Dilation?

• Dilation means to enlarge or reduce
• Dilation means to reflect on something
• Dilation means to like something
• Dilation means to make something different by making it smaller

Tags

CCSS.8.G.A.3

• The perimeter of the new rectangle will be the same as the perimeter of the original rectangle.
• The perimeter of the new rectangle will be 2.5 times as large as the perimeter of the original rectangle.
• The perimeter of the new rectangle will be 5 times as large as the perimeter of the original rectangle.

Tags

CCSS.7.G.A.1

A rectangle has a base 4 ft and height of 5 feet. If the figure dilated by a scale factor of 2, what will be true about its area?

• The area is doubled.
• The area is multiplied by 4.
• The area stays the same

Tags

CCSS.7.G.A.1

A figure is multiplied by the scale factor 1/4. What will be the change in perimeter?

• The perimeter will be 1/4 the original perimeter.
• The perimeter will be 1/8 the original perimeter.
• The perimeter will be 1/16 the original perimeter

Tags

CCSS.7.G.A.1

When multiplying by a scale factor the area will multiply by...

• The same scale factor
• The scale factor doubled
• The scale factor squared (to the power of 2)

Tags

CCSS.7.G.A.1

When multiplying by a scale factor the perimeter will multiply by...

• The same scale factor
• The scale factor doubled
• The scale factor squared (to the power of 2)

Tags

CCSS.7.G.A.1

A figure is multiplied by the scale factor 1/4. What will be the change in perimeter?

• The perimeter will be 1/4 the original perimeter.
• The perimeter will be 1/8 the original perimeter.
• The perimeter will be 1/16 the original perimeter

A figure is multiplied by the scale factor 1/4. What will be the change in area?

• The area will be 1/4 the original area.
• The area will be 1/8 the original area.
• The area will be 1/16 the original area.

Tags

CCSS.7.G.A.1