FORMULAS: AREA OF SHAPES Flashcards
1
Q
What is the formula for the AREA of a rectangle?
A
A = bh Area = breadth x height
2
Q
What is the formula for the AREA of a square?
A
A = bh
Area = breadth x height
/or/
Area = side^2 (squared)
3
Q
What is the formula for the AREA of a triangle?
A
A = 1/2bh Area = 1/2 x breadth x height
4
Q
What is the formula for the AREA of a parallelogram?
A
A = bh Area = breadth x height
5
Q
What is the formula for the AREA of a kite?
A
A = 1/2xy Area = 1/2 x x(height) x y(width)
6
Q
What is the formula for the AREA of a rhombus?
A
A = 1/2xy Area = 1/2 x x(diagonal) x y(diagonal)
7
Q
What is the formula for the AREA of a trapezium?
A
A = 1/2h(a+b) Area = 1/2 x height x (the addition of the length of both parallel sides)
8
Q
What is the formula for the AREA of a circle?
A
A = Pi r^2 (squared) Area = Pi x radius^squared
9
Q
What is the formula for the AREA of a sector (of a circle)?
A
A = degree/360xPi r^2 A = degree/360 x Pi radius^squared
10
Q
What is the formula for the SURFACE AREA of a cylinder?
A
SA = 2Pi r^2 + 2Pi rh
Surface Area = 2 x Pi x radius^squared + 2 x Pi x radius x height
11
Q
What is the formula for the SURFACE AREA of a sphere?
A
SA = 4Pi r^2
Surface Area = 4 x Pi x radius^squared
