Volumes, Areas & Surface Areas Flashcards
1
Q
Area of trapezium
A
1/2(a+b)h
2
Q
Area of circle
A
2πr^2
3
Q
Circumference of circle
A
2πr
4
Q
Perimeter of semicircle
A
1/2πr^2
5
Q
Sector area
A
πr^2x0/360
6
Q
Length of arc
A
2πrX0/360
7
Q
Surface area of cylinder
A
Curved - 2πrh
Total - 2πr(h+r)
8
Q
Volume of cylinder
A
πr^2h
9
Q
Surface area of cone
A
Curved - πrl
Where l - squarw root of (r^2 + h^2)
Total - πr (l+r)
10
Q
Volume of cone
A
1/3πr^2h
11
Q
Surface area of sphere
A
4πr^2
12
Q
Volume of sphere
A
4/3πr^3
13
Q
Volume of pyramid
A
1/3 x base area x perpendicular height
14
Q
Surface area of cuboid
A
2(lb + bh + lh)
15
Q
Volume of cuboid
A
L x B x H
