Maths Flashcards
1
Q
What is an irrational number
A
A number that’s digits run forever and don’t repeat themselves
2
Q
Angle sum of polygon
A
(N-2)x180
Where n = number of sides
3
Q
Sum of exterior angles of a convex polygon
A
360 degrees
4
Q
Size of exterior angles
A
360 divided by the number of sides
5
Q
Area of a parallelogram
A
Base x height
6
Q
Area of a kite
A
Half x X x y
7
Q
Area of a trapezium
A
Half x ( a+b) X height
8
Q
Area of a circle
A
Pi x radius squared
9
Q
Area of a sector
A
Theta divided by 360 x pi x radius squared
10
Q
Perimeter of a sector
A
(Theta divided by 360 x Pi x 2 x radius)
+
Radius x 2
