Scale Factor Perimeter Area

Find missing side

• 5

• 7

• 9

• 11

The area of this rectangle is 90 km². If a scaled copy of this rectangle is made using a scale factor of 1/3, then what is the area of the copy?

• 36 km²

• 20 km²

• 10 km²

• 90 km²

The area of this rectangle is 40 cm². A scaled copy of this rectangle is made using a scale factor of 10, then how many times larger is the area of the copy?

• 100 times larger

• 10 times larger

• 4 times larger

• 40 times larger

A square has an area of 225 m². If a copy is made using a scale factor of 3, then what is the area of the copy?

• 75 m²

• 675 m²

• 2,025 m²

• 1,350 m²

Figure ABCD is then dilated using a scale factor of 4. What is the perimeter of the new figure?

• 32

• 64

If a shape is dilated by a scale factor of one-half, what is the resulting perimeter?

• The same as the perimeter of the pre-image

• The new perimeter is bigger than the pre-image

• The new perimeter is smaller than the pre-image

• The new perimeter is 4 times the original

If a shape is dilated by a scale factor of 1/2, what is the resulting perimeter?

• The new perimeter is 1/2 the original

• The new perimeter is 1/4 the original

A quadrilateral is dilated by a scale factor of 3.5. Which statement is true about the figure.

• The figure's perimeter is 12.25 times the perimeter of the pre-image.

• The figure's perimeter is 7 times the perimeter of the pre-image.

• The figure's area is 12.25 times the area of the pre-image.

• The figure's area is 7 times the area of the pre-image.

A shape is dilated. To find the perimeter of the image you would...

• Multiply the perimeter of the pre-image by the scale factor.

• Multiply the perimeter of the pre-image by the scale factor squared.

The area of the larger square is __________ times larger than the area of the smaller square.

• 1/2

• 1

• 2

• 4