There is no standard relationship between perimeter and area. For example, you can have two rectangles that have the same perimeter, but different area.
If you are trying to find the ratio of the lengths of two similar rectangles, divide the length of one side of one rectangle by the corresponding side length of the other rectangle. To find the ratio between their volumes, divide the volume of one rectangle by the volume the other rectangle. To find volume, multiply the width of the rectangle by the length of the rectangle.
That will depend on their dimensions which have not been given.
Yes. Say there are two rectangles, both with perimeter of 20. One of the rectangles is a 2 by 8 rectangle. The area of this rectangle is 2 x 8 which is 16. The other rectangle is a 4 by 6 rectangle. It has an area of 4 x 6 which is 24.
This browser is hopeless for drawing but consider the following two rectangles: a*b and (a+1)*(b-1). Their perimeter will be 2a+2b but unless a = b-1, their area will be different.
You could consider the cross as two intersecting rectangles. Calculate the area of both rectangles and the area of the intersection (overlap). Then area of cross = sum of the areas of the rectangles minus the area of the overlap.
you just times it by two
You should break it down in to smaller shapes. Two rectangles. Then figure out all the lengths. Multiply to find the area of the two rectangles. then add the products to get the final area.
An L-shaped area can be divided into two rectangles. The total area is the sum of the areas of the two rectangles.
Some irregular shapes can be broken down into a combination of rectangles. Think of a solid "L" shape. It might be difficult to find the area of that. But if you think of it as two rectangles, it's a lot easier.
Do you mean the surface area of the box? If so... What you do is break the surface area into 6 rectangles: Two rectangles have sides of length 6.3 and 12.6 inches. Two rectangles have sides of length 6.3 and 4.2 inches. Two rectangles have sides of length 12.6 and 4.2 inches. Find the area of each of the six rectangles (using the standard formula for the area of a rectangle, A = W x H), and add up all six. The sum of the areas of the six rectangles will be the surface area of the box. Since the lengths of the sides are in inches, the area will already be in square inches, and therefore you don't have to "turn it into square inches".
Assuming you have the dimensions of each of the sides - treat it as two separate rectangles. Using the measurements you have, work out the areas of both rectangles - then add them together.
There is no standard relationship between perimeter and area. For example, you can have two rectangles that have the same perimeter, but different area.
8:32
no
Rectangles don't have depth. If your figure has three dimensions, divide the area by the product of the two dimensions you know. The quotient will be the third dimension.
96 units squared. To find area of rectangles, simply multiply the two dimensions (length and width) which in this case are 12 and 8.