1. Area of a rectangle is the length times the width. Area of a parallelogram is base times the height. Area of a trapezoid is one half the sum of the two bases times the height. Area of a circle is π times the square of the radius.
2. Area Formulas
| Figures |
Formula |
Variables |
| Rectangle |
Area = l × w |
l = length w = width |
| Square |
Area = a 2 |
a = sides of square |
| Triangle |
Area = 1 2 bh |
b = base h = height |
| Circle |
Area = π r 2 |
r = radius of circle |
3. The basic formula for calculating area is Length times Width (LxW).
