Stretching and Shrinking Summative Review

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

If Mug's coordinates are (x,y), what rule would Slug need to be in order to be similar to Mug?

Back

(.75x, .75y) - This indicates a reduction in size.

Front

Which proportion correctly shows the corresponding sides of two similar figures?

Back

Front

Describe the transformation identified in the rule: (.5x + 1, .5y + 2).

Back

Size of figure would reduce; figure would shift right and up.

Front

What is the height of the building if a triangle is formed by the building's height and shadow, and another triangle is formed by the flagpole's height and shadow?

Back

280 ft.

Front

What is the definition of similar figures?

Back

Figures that have the same shape but may differ in size.

Front

What is the relationship between the angles of similar triangles?

Back

The corresponding angles of similar triangles are equal.

Front

What is the scale factor in transformations?

Back

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

Front

How do you find the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What does it mean for a figure to be enlarged?

Back

An enlargement increases the size of the figure while maintaining its shape.