Similarity
For 2 shapes to be similar, what needs to be true about corresponding angles?
They need to be equal
A triangle has sides of 3 cm, 4 cm, and 5 cm. It is dilated with a scale factor of 3. What are the new side lengths?
9 cm, 12 cm, 15 cm
What is the slope of a line that passes through (2, 4) and (6, 12)?
8/4 or 2
What color is my phone?
Blue
For 2 shapes to be similar, what needs to be true about their corresponding sides?
They need to be found by multiplying by a common scale factor
What is the formula for finding scale factor?
new divided by old
What is the formula for slope?
Change in y divided by change in x
When did I begin my teaching career?
2022-2023 school year
A rectangle has one side with a length of 8 cm and another side length with 10 cm. Another rectangle has one side of 16 cm and one side of 20 cm. Are they similar?
Yes
What does kind of number must the scale factor be if the new shape is smaller?
a fraction
What is the slope of a line that goes through points (2,8) and (6, 10)?
What brand is my backpack?
Adidas
True or false: if two shapes are congruent, they must be similar
false
Which pieces of information do you need to describe a dilation?
Scale factor and center of dilation
Are (3,4) and (9,12) on the same line?
yes
What school year was I in 8th grade?
2012-2013
The quotient of 2 sides in a rectangle is 4. What is the quotient of their corresponding sides?
4
A side of a triangle is 45. The corresponding side in a dilated triangle is 15. What was the scale factor?
1/3
How do you write an expression that will help you find slope?
y-y/x-x
What show am I going to watch at lunch?
Ted Lasso