8.3C & 8.10D Practice

Front

What happens to the perimeter and area of a figure when it is dilated by a scale factor of 4?

Back

The perimeter is multiplied by 4 and the area is multiplied by 16.

Front

If the linear scale factor is 6, what is the area scale factor?

Back

36

Front

If two figures are similar, what can be said about their corresponding sides?

Back

The corresponding sides are proportional.

Front

True or False: If both the side lengths and perimeter are 3 times larger in a bigger rectangle, the statement is true.

Back

True.

Front

What do we call two objects that are the same shape but NOT the same size?

Back

Similar.

Front

Define 'dilation' in geometry.

Back

Dilation is a transformation that alters the size of a figure but keeps its shape the same.

Front

What is the relationship between the scale factor and the area scale factor?

Back

The area scale factor is the square of the linear scale factor.

Front

If a triangle has a scale factor of 2, what is the area scale factor?

Back

4 (since 2^2 = 4).

Front

What does it mean for two figures to be 'congruent'?

Back

Two figures are congruent if they have the same shape and size.

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.