CIRCLES, ARCS AND SECTORS Flashcards
1
Q
What is the circumference of a circle?
A
C = π x d
2
Q
what is the formula for an area of a circle?
A
A= π x r^2
3
Q
what is the formula for the volume of a sphere?
A
V = 4/3 x π x r^3
4
Q
what is the area of a sector?
A
angle/360 x π x r^2
5
Q
what is the length of an arc
A
angle/360 x π x D