Add together the lengths of each of its sides.
You are describing a cuboid, not a rectangle. A rectangle has only two diminutions, length and width.
Write two simultaneous equations and solve them. One for the perimeter, one for the area.
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.
area = width x height = 30 square feet ( not feet) 5 x height = 30 height = 6 feet perimeter = 2 width + 2 height = 10 + 12 = 22 feet
all you have to do is add together the four sides. 2L+2W=Perimeter (L=length or base, W=Width or height)
Write an equation for the perimeter, and solve it. Remember that the perimeter is the sum of all four sides.
For a rectangle, it is 2(l + w) l = length w = width
There is no "height" of a rectangle, unless it's a rectangular prism. Do you mean the length? If you have the area of the rectangle, the equation should be:A= L x WPlug in the area and the length and solve for the width, or plug in the area the width of the rectangle, and solve for the length.
You are describing a cuboid, not a rectangle. A rectangle has only two diminutions, length and width.
Perimeter is Length + width x 2 or Length + length + width + width. This is perimeter for any shape including a rectangle. Perimeter of a rectangle is all sides added together for a rectangle.
You can't if you don't what the height and width is.
Write two simultaneous equations and solve them. One for the perimeter, one for the area.
If the length of a rectangle is twice its width and it has a perimeter of 48, then the rectangle is 16 in length and 8 in width.
Assuming the object is a rectangular parallelepiped, use its density to find its volume and solve the equation V abc for c where a, b, and c are the height, length and width respectively
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.
area = width x height = 30 square feet ( not feet) 5 x height = 30 height = 6 feet perimeter = 2 width + 2 height = 10 + 12 = 22 feet
The length of a rectangle is twice its width. If the perimeter of the rectangle is , find its area.