Maths Flashcards
(31 cards)
Sin*
opp/hyp
Cos*
adj/hyp
Tan*
opp/adj
Simple interest
I=PRT/100
Compound interest annually
t
A=P(1+r)
Compound interest n times a year
nt
A=P(1+r/n)
Area of triangle
A=0.5 x base x height
Area of circle
2
A=Pi x r
Area of a Parallelogram
A= base x height
Area of a trapezium
A= 0.5 x (a+b) x height
Volume of prisms
V= area of base x height
Volume of pyramid
V= 1/3 x area of base x height
Curved surface of cylinders
= 2 x pi x r x h
Total surface of cylinders
2
= 2 x Pi x r x h + 2 x Pi x r
Volume of cylinders
2
V= Pi x r x h
Curved surface of a cone
= Pi x r x s
TSA of a cone
2
= Pi x r x s + Pi x r
Volume of cone
2
V= 1/3 x Pi x r x h
TSA of sphere
2
= 4 x Pi x r
Volume of sphere
3
V= 4/3 x Pi x r
Gradient
Y — Y
2 1
= ———————
X — X
2 1Distance
= square root of
2 2
(Y — Y ) + (X — X)
2 1 2 1
Midpoint
X + X Y + Y
1 2 1 2
= ——————— , ——————
2 2
Equation for functions & graphs
Y= MX + C
