equations Flashcards
1
Q
volume of a cone
A
(πr^2h)/h
2
Q
sa of a cone
A
πrl +πr^2
3
Q
volume of a sphere
A
4/3 x πr^3
4
Q
sa of a sphere
A
4πr^2
5
Q
volume of a cylinder
A
πr^2h
6
Q
surface area of a cylinder
A
2πrh + 2(πr^2)
7
Q
quadratic formula
A
(-b+ or - √b^2 - 4ac) / 2a
8
Q
sine rule
A
sinA/a = sinB/b
9
Q
cosine rule
A
a^2 = b^2 +c^2 - 2bccosA
10
Q
rearranged cosine rule
A
cosA = (b^2 + c^2 - a^2) / 2bc
11
Q
A
