What is that? Part 1
Formulas
Circles
What is that? Part 2
Proportional or not?
100
What logo is this?
Steam
100
How do you find the perimeter of any shape?
Add up all the sides!
100
What is the radius of this circle?
5 cm
100
What logo is this?
Duolingo
100
Proportional or not proportional?
proportional
200
What does this line over the 5 and 6 mean?
repeating decimal
200
What is the formula for area of a rectangle?
Base x Height
OR
Length x Width
200
What is the diameter of this circle?
10 cm
200
Shapes that are the same shape but different sizes
scaled copies or similar figures
200
Proportional or not proportional?
Not proportional because it doesn't start at (0,0)
300
pi
pi, 3.14...
300
What is the formula for circumference?
pi *diameter
300
What is the area of this circle? (must include units)
79.5 square cm
300
Where is this?
Australia
300
Proportional or not proportional? Why?
No proportional because it is adding.
400
reciprocal
400
What is the formula for the area of a circle?
pi*radius*radius
pi*radius^2
400
What is the circumference of this circle? (include units)
31.4 cm
400
What country's flag is this?
Turkey
400
Proportional or not proportional? Why?
Proportional because it's just times 3.
500
What country's flag is this?
Panama
500
What is the formula for the area of a rectangle
base*heightdiv2
500
What is the area AND circumference of this circle? (label both and include units)
circumference= 25.12 cm
area= 50.24 square cm
500
This point on a graph is called
the origin
500
Proportional or not? Why?
Proportional because it's times 1/5 (aka divide by 5) each time.