Similar Shapes, Scale Factors, and Missing Side Lengths - 6

Front

What are similar shapes?

Back

Are shapes that have the same shape, but not necessarily the same size.

Front

How many times smaller is the area of the second triangle compared to the area of the first triangle?

Back

1/9

Front

How many times smaller is the area of the smaller trapezoid compared to the area of the larger trapezoid?

Back

1/4

Front

If a Scale Factor is between 0 and 1, then your figure gets...

Back

Smaller

Front

Find the length of x if the scale factor is 1/2 and the original length is 4.

Back

x = 2

Front

What is the scale factor if the original length is 8 and the new length is 4?

Back

1/2

Front

If two shapes are similar, what can be said about their corresponding angles?

Back

Their corresponding angles are equal.

Front

If a shape is enlarged by a scale factor of 3, what happens to its area?

Back

The area increases by a factor of 9.

Front

What is the relationship between the scale factor and the ratio of the areas of two similar shapes?

Back

The ratio of the areas is the square of the scale factor.

Front

If the scale factor is 2, how does the perimeter of the new shape compare to the original?

Back

The perimeter doubles.