Circles Flashcards
1
Q
What is the formula for the circumference of a circle?
A
Circumference = * π * diameter
2
Q
What is the formula for the area of a circle?
A
Area = π * radius^2
3
Q
Fill in the blank: The diameter of a circle is equal to ______ times the radius.
A
2
4
Q
What is the formula for the area of a sector of a circle?
A
Area of sector = (angle/360) * π * radius^2
5
Q
Arc length formula
A
θ/360 × π d .
6
Q
A
