Question

The scale factor of a figure and its enlargement is 6. What is the new length of the enlarged figure if the original length is 3 cm?

3 cm
6 cm
18 cm
36 cm

Answer 1

You multiply three times six.

3 x 6 = 18

Answer 2

The new length of the enlarged figure will 18 cm.

Explanation:

A scale factor is a number which scales, or multiplies the original figure by some quantity.

In the equation
`y = Cx`, C is a scale factor for x. It is called the constant of proportionality or scale factor of y to x.

As the given length is 3 cm, so with a scale factor of 6, the length of the enlarged figure will be
`3* 6=18` cm

Therefore, the new length of the enlarged figure will 18 cm.