Area Perimeter Scale Factor

If the scale factor is 4, how many times bigger is the area?

• 2 times bigger

• 4 times bigger

• 16 times bigger

If the scale factor is 4, how many times bigger is the perimeter?

• 4 times bigger

• 16 times bigger

• 8 times bigger

If the perimeter is 8 times bigger, what is the scale factor?

• 64

• 8

• 16

• No scale factor

If the area is 100 times bigger, what is the scale factor

• 10

• 100

• 50

• No scale factor

Which expression calculates the area of the figure given,in sq cm?

• ( (2) +( 3) )( 1+ (-9) )

• ( (-2) +( -3) )( 1+ (-9) )

• ( (-2) +( -3) )( (-1) + 9 )

• ( (-2) +( -3) )( 1+ 9 ) 

The original area of a rectangle is 25cm² , if we enlarge it by a scale factor of 6 what is the new area?

• 150

• 900

• 5400

A rectangle has the dimensions 4cm by 5cm. A scale factor of 3 is used to enlarge the rectangle. What is the new area?

• 20 cm²

• 60 cm²

• 180 cm²

• 100 cm²

Using the image, with a scale factor of 2, find the perimeter of the new rectangle.

Find the perimeter of the large triangle.

• 24

• 36

• 12

• 54

If the area of a rectangle is 20 square units and the larger rectangle has a zoom factor of 3:1 compared to the smaller, what is the area of the larger rectangle?

• 60 square units

• 90 square units

• 180 square units

• 20 square units