5. Perimeter, Area and Volume Flashcards
1
Q
What is the area of a circle?
A
A = π x radius^2
2
Q
What is the area of a sector?
A
A = angle size/360 x π x radius^2
3
Q
What is the area of a semicircle?
A
A = 1/2 x π x radius^2
4
Q
What is the area of a quadrant?
A
A = 1/4 x πx radius^2
5
Q
What is the area of a composite shape?
A
A = A1 + A2 + (etc)
6
Q
What is the area of a trapezium?
A
A = 1/4 (height) (a + b)
7
Q
What is the area of a parallelogram?
A
A = base x height
