Perimeter, Area, Surface Area & Volume Flashcards
1
Q
Circumference
A
2πr
2
Q
Perimeter of a rectangle
A
2(l+w)
3
Q
Perimeter
A
Length of a flat shape
4
Q
Area of a square
A
A= a x a
5
Q
Area of a rectangle
A
A = l x w
6
Q
Area of a parallelogram
A
A = b x h
7
Q
Area of a trapezium
A
A = 1/2 (a+b) x h
8
Q
Area of a triangle
A
A = bxh/2
9
Q
Area of a circle
A
A = πr^2
10
Q
Curved surface area of a cylinder
A
CSA = 2πrh
Top = πr^2
Bottom = πr^2
Total SA = 2πr^2 + 2πrh
11
Q
Surface area
A
The area of the faces of the shape.
12
Q
Curved surface area of a cone
A
CSA = πrs
where s = (square root) r^2 + h^2
Bottom = πr^2
Total SA = πr^2 + πrs
13
Q
Curved surface area of a sphere
A
CSA = 4πr^2
14
Q
Volume of prisms
A
V = Area of base x h
15
Q
Volume of a sphere
A
4/3πr^3
