Similar Figures and Slope Math

• B

• C

• D

• E

• F

• Dilations always increase the length of line segments.

• Dilations take perpendicular lines to perpendicular lines.

• Dilations of an angle are congruent to the original angle.

• Dilations increase the measure of angles.

• Dilations of a triangle are similar to the original triangle.

Hint: Remember OD x SF = DD (find the scale factor)

• 8

• 12.5

• 2.68

• 0.67

Find the length of EF.

• 0.67

• 2.01

• 12.01

• 4

The pair of figures is similar. Find the missing side.

• x = 10

• x = 4

• x = 2

• x = 5

• A

• B

• C

• D

Triangles ABC and DEF are similar. The slope of the hypotenuse of ABC is...

• the SAME as the slope of the hypotenuse of triangle DEF

• LESS THAN the slope of the hypotenuse of triangle DEF

• GREATER THAN the slope of the hypotenuse of triangle DEF

Tell whether the two figures are similar. Explain your reasoning.

• Yes, similar because they are the same shape and side lengths are proportional.

• No, not similar because they are the same shape, but side lengths are not proportional.

• Yes, same shape

• No, different sizes

• F

• G

• H

• J

• A

• B

• C

• D