How do you calculate the area of a door?
To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.
What is area formula?
Perimeter, Area, and Volume
|Table 2. Area Formulas|
|Square||A=s2||s is the length of the side of the square.|
|Rectangle||A=LW||L and W are the lengths of the rectangle’s sides (length and width).|
|Triangle||A=12bh||b and h are the base and height|
How do you find the area of an object?
Find the area of a square or rectangle by multiplying the length times the width. This formula looks like l*w. If the length is 5 and the width is 2, the area is 10 square units. Calculate the area of a four-sided shape that is not a rectangle by multiplying the base (one of the sides) by the height.
What is the perimeter formula?
The perimeter is equal to the boundary of the rectangle which can be calculated with the formula: Perimeter = Length + Length + Width + Width = 2(Length + Width).
How do u find the mean?
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
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|