Similar Figures 2

Front

What are similar figures?

Back

Similar figures are shapes that have the same shape but may differ in size. Their corresponding angles are equal, and the lengths of their corresponding sides are proportional.

Front

How do you find the missing side of similar figures?

Back

To find the missing side of similar figures, set up a proportion using the lengths of the corresponding sides of the figures.

Front

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

Back

If two triangles are similar, their corresponding angles are equal.

Front

What is the scale factor in similar figures?

Back

The scale factor is the ratio of the lengths of two corresponding sides of similar figures.

Front

If the scale factor of two similar figures is 2:3, what does this mean?

Back

This means that for every 2 units in one figure, there are 3 units in the other figure.

Front

How do you calculate the height of an object using similar triangles?

Back

You can calculate the height of an object by using the properties of similar triangles, often involving a mirror or a shadow.

Front

What is the relationship between the areas of two similar figures?

Back

The ratio of the areas of two similar figures is equal to the square of the ratio of their corresponding side lengths.

Front

If one side of a triangle is 4 cm and the corresponding side of a similar triangle is 6 cm, what is the scale factor?

Back

The scale factor is 4:6 or simplified to 2:3.

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

Front

If two similar figures have a scale factor of 1:4, how does this affect their perimeters?

Back

The perimeter of the larger figure will be four times the perimeter of the smaller figure.