Area formulae Flashcards
1
Q
What is the formula for the area of a square?
A
A = s²
s = side length
2
Q
What is the formula for the area of a rectangle?
A
A = lb
l = length, b = breadth
3
Q
What is the formula for the area of a triangle?
A
A = ½bh
Area = one half of the base (b) x perpendicular height (h)
4
Q
What is the formula for the area of a trapezium?
A
A = ½h(a + b)
Area = half the height times the sum of lengths a and b
4
Q
What is the formula for the area of a paralellogram?
A
A = bh
b = base, h = perpendicular height
5
Q
What is the area of a rhombus or kite?
A
A = ½xy
Area = diagonal x times diagonal y all divided by two.
6
Q
What is the formula for the area of a circle?
A
πr²
Area = the radius squared, multiplied by π
