What is area formula?
The most basic area formula is the formula for the area of a rectangle. Given a rectangle with length l and width w, the formula for the area is: A = lw (rectangle). That is, the area of the rectangle is the length multiplied by the width.
How do measure area?
Area is calculated by multiplying the length of a shape by its width. In this case, we could work out the area of this rectangle even if it wasn’t on squared paper, just by working out 5cm x 5cm = 25cm² (the shape is not drawn to scale).
What is perimeter formula?
To find the perimeter of a rectangle, add the lengths of the rectangle’s four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width). Multiply both the height and width by two and add the results.
What is SI unit of area?
The SI unit of area is the square meter (m2), which is a derived unit.
What are the formulas for area and perimeter?
Area and Perimeter Formula Chart
|Area of Rectangle||Area = l × w||l = length w = width|
|Area of Square||Area = a2||a = sides of the square|
|Area of a Triangle||Area = 1/2 b×h||b = base h = height|
|Area of a Circle||Area = πr2||r = radius of the circle|