Unit 4 Formative

Front

What must be true about the sides in similar figures?

Back

Sides in similar figures must be proportional.

Front

When figures are similar, their corresponding sides are _____________.

Back

proportional.

Front

What does a scale factor of 5 indicate?

Back

Enlargement.

Front

Are the following triangles similar?

Back

Yes.

Front

Are the following figures similar? Why or why not?

Back

No, the ratios of the corresponding sides are not equal.

Front

Define similar figures.

Back

Figures that have the same shape but may differ in size; their corresponding angles are equal and their corresponding sides are proportional.

Front

What is the scale factor?

Back

The ratio of the lengths of corresponding sides of two similar figures.

Front

If two triangles have angles measuring 30°, 60°, and 90°, are they similar?

Back

Yes, because their corresponding angles are equal.

Front

What is the relationship between corresponding angles in similar figures?

Back

Corresponding angles in similar figures are equal.

Front

If a triangle has sides of lengths 3, 4, and 5, and another triangle has sides of lengths 6, 8, and 10, are they similar?

Back

Yes, because the ratios of the corresponding sides are equal (1:2).