8.3C & 8.10D Practice

Front

What happens to the side lengths of a rectangle when it is dilated by a scale factor of 3?

Back

The side lengths are multiplied by 3.

Front

How do you calculate the increase in area when a shape is dilated by a scale factor of 3?

Back

Square the scale factor: 3 x 3 = 9. The area increases by a factor of 9.

Front

If a rectangle is dilated by a scale factor of 3, what happens to its area?

Back

The area is dilated by a scale factor of 9.

Front

What is the algebraic representation of a dilation with a scale factor of 1/2?

Back

(x, y) → (1/2x, 1/2y)