What's 1+1?
2
True or False? Dilations always make a figure smaller.
False
Is a dilation with a scale factor of 400/399 an enlargement or reduction (shrinking)?
Enlargement (Gets bigger)
Give the dimensions of another rectangle that is similar to these two rectangles.
5 x 8
20 x 32
100 x 160
etc.
Who was the 34th President of the United States?
Dwight D. Eisenhower
Solve the following equation for x:
2x + 7 = 9
x = 1
A dilation might change the size of a figure's side lengths but never the _______.
angles or shape
What transformations can be used to prove similarity.
List them all!
1) Translations
2) Rotations
3) Reflections
4) Dilations
Point A has the coordinates (9, -3). What is the scale factor used if the new coordinates are A'(3, -1)?
k = 1/3 or 0.33
Who was the first Black professional basketball player in America?
Earl Lloyd
What does the word "proportional" mean in your own words?
"Fair"
Maintaining the same multiplicative relationship
Dilations always produce ___________ figures.
similar
If the scale factor is greater than 1 (ex:9) then the dilated image is ______________ from the original figure.
Enlarged
Congruent figures are _____ similar.
(sometimes, always, or never)
always
What year did the Roblox release?
2006
What is the formula we use to find the volume of a cylinder?
V = πr2h
What are the 2 most important details about a dilation?
1) Center Point of Dilation
2) Scale Factor
If the scale factor is less than 1 (ex:1/5) then the dilated image is ____________ from the original figure.
Reduced
Similar figures are ____ congruent.
(sometimes, always)
sometimes
Which country has the highest population in the world?
India
What does it mean to "square" a number?
Multiply it by itself.
If a square is dilated using a scale factor of 3, how many times larger will the area of the new square be?
4 times larger
Dilations can result in a congruent figure if their scale factor is ____.
1
What is the formula for Scale Factor?
k = new side / old side
What was the score of the last 49er game and who won?
16-15, 49ers