Example length 5cm and height 4cm
Area is length times height = 5 x 4 = 20cm
Perimeter is length top and bottom = 5 + 5 = 10
plus height left and right = 4 + 4 = 8
making total 10 + 8 = 8
or (5 + 4) x 2 = 18cm
perimeter is different from area because example is in rectangle from formula until you get the answer you can easily see the difference
perimeter is the measure around the figure; area is the measure within the figure formula: perimeter: length+length+width+width=perimeter (for square or rectangle) area: length times width= area ( for square or rectangle)
for area you multiply length times width and for perimeter you add all of the sides together
You must first calculate the width, using the formula for the area of a rectangle (plug in the numbers you know into the formula, and solve for width). Once you know this, you can plug in the numbers in the formula for a rectangle's perimeter.
Squares are rectangles so the formula for area will stay the same.
Area of a rectangle: a = l * w
There is no formula for a rectangle. There are formula for calculating its area, perimeter or length of diagonals from its sides, or it is possible to calculate the length of one pair of sides given the other sides and the area or perimeter, or the two lots of sides given area and perimeter and so on.
L.A.= 2*pi*radius*height its not like finding the area of a rectangle. a cylinder is a 3-D shape and a rectangle is a flat shape
A = lw Area of a rectangle = length times width
perimeter is different from area because example is in rectangle from formula until you get the answer you can easily see the difference
base times height = area
perimeter is the measure around the figure; area is the measure within the figure formula: perimeter: length+length+width+width=perimeter (for square or rectangle) area: length times width= area ( for square or rectangle)
Area of rectangle is l x b. Where l is length and b is breath of the rectangle.
The answer depends on what information you have about the rectangle: the area and width, or width and diagonal, area and perimeter or some other measures.
for area you multiply length times width and for perimeter you add all of the sides together
Area=length x width Perimeter= 2l+2w
Multiply the base by the height !