Rigid Transformations
Dilations
Similarity
Slope
Triangles
100

A flip in math.

Reflection

100

True or False? Dilations always make a figure smaller. 

False

100

True or False? When two figures are congruent then they have the same side lengths and angles.

true

100

Slope is the measure of:

a) the length of a line

b) the steepness of a line

c) the width of a line

d) the direction of the line

b) Steepness

100

The sum of all interior angles in a triangle will always equal this number.

180^o

200

A slide in math.

Translation

200

A dilation might change the size of a figure's side lengths but never the _______.

angles

200

True or False? When two figures are similar, they are exactly the same in all ways.

False

200

A slope going downwards from left to right is a positive, negative, zero, or undefined slope.

negative

200

If two triangles have _____ of their angles equal, the triangles are similar.

two / three

300

A turn in math.

Rotation

300

Dilations always produce ___________ figures.

similar

300

Congruent figures are _____ similar. 

(sometimes, always)

always

300

Does this line represent a positive or negative slope?

positive

300

What is the measure of the missing angle?

35^o

400

Describing a translation requires these two things. 

1) Direction

2) Distance

400

Dilations need these two things.

1) Center Point of Dilation
2) Scale Factor

400

Similar figures are ________ congruent. 

(sometimes, always)

sometimes

400

A line that is perfectly horizontal has a slope of ____________.

zero

400

These two triangles are similar. Triangle ABC was scaled with a scale factor of 1.5. If side FE is 5 units long, what is the length of CB?    

7.5 units

500

Describing a rotation requires these three things. 

1) Center (Point)

2) Rotation angle (Degrees)

3) Direction (Clockwise or Counterclockwise)

500

How will dilating a figure with a scale factor of 1/3 change a figure?

It will make the figure 3 times smaller from the center of dilation.

500

Triangle ABC ~ Triangle DEF

If the largest angle in triangle ABC is 90 degrees, then what is the largest angle in Triangle DEF?

90 degrees

500

Slope is the change in ______ over _____.

rise over run

500

These two triangles are similar. Find the missing side lengths. Also , angle ACB is 90 degrees and angle RST is 27 degrees, what is the measure of angle BAC?

s=12

t=15

angle BAC = 63 degrees

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