maths formulas + trig values Flashcards
(8 cards)
1
Q
area of a circle
A
πr²
2
Q
circumference of a circle
A
-πd
3
Q
area of a circle sector
A
-π² (x)/360
4
Q
area of trapezium
A
-1/2 (a + b) x h
- a and b are the parallel sides
5
Q
arc length
A
-πd x (x)/360
6
Q
volume of cylinder
A
-(π r²)h
7
Q
surface area of cylinder
A
1) 2(π r²)
2) dπ x h
3)(2(π r²)) + dπ x h
8
Q
formula for nth term of a quadratic sequence
A
-an²+bn+c
1)a+ b +c
2)3a+b
3)2a
