## How do you find area using scale factor?

You multiply the area by the scale factor twice. Here is an example: if we have a rectangle that has a length 3 and a height of 4 and the scale drawing with a scale factor of 2, how many times bigger is the scale drawings area? The original shape is 3 by 4 so we multiply those to find the area of 12 square units.

**How do you find the scale factor of a dilation word problem?**

To find the scale factor for a dilation, we find the center point of dilation and measure the distance from this center point to a point on the preimage and also the distance from the center point to a point on the image. The ratio of these distances gives us the scale factor, as Math Bits Notebook accurately states.

### How is area affected by scale factor?

The area of a scaled object will be equal to the scale factor squared. Again, if the scale factor is three, the area of the new object will be nine times, or three squared, the area of the original object.

**How can you use dilations to solve real world problems?**

A dilations in real life is used for making models of buildings in architecture, projects, making maps…

#### How do you find the area of a dilation?

The perimeter of the dilated figure is the perimeter of the original figure multiplied by the scale factor. The area of the dilated figure is the area of the original figure multiplied by the square of the scale factor.

**Why does the area change by the square of the scale factor?**

Lengths are one-dimensional, so in a scaled copy, they change by the scale factor. Area is two-dimensional, so it changes by the square of the scale factor.

## What happens to the area when you enlarge a shape?

When we enlarge a shape by a scale factor, the length of each edge and the perimeter are multiplied by the scale factor. When we enlarge a shape by a scale factor, the area of the shape is multiplied by the square of the scale factor.