8th Grade - Unit 2 Test Review

Front

What are similar figures?

Back

Figures that have the same shape but not necessarily the same size.

Front

Write the slope equation of a line using the point (6, 3) and slope 5/3.

Back

Front

What is the scale factor that dilated triangle ABC to triangle A'B'C'?

Back

3

Front

What is the slope of the line that rises 5 units for every 3 units it runs?

Back

Front

What is the slope of a line that rises 3 units for every 4 units it runs?

Back

Front

Define scale factor in geometry.

Back

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

Front

What is the formula for calculating slope?

Back

Slope (m) = \frac{\text{rise}}{\text{run}}.

Front

If a triangle is dilated by a scale factor of 2, what happens to its area?

Back

The area is multiplied by 2^2 = 4.

Front

What does it mean for two figures to be congruent?

Back

They have the same shape and size.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = \frac{y2 - y1}{x2 - x1}.