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Q: Why does length x width work for finding area?

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area is................ length x width perimeter is .......... length x width x length x width * * * * * WRONG. Area is the amount of space occupied by a shape. In the case of a rectangle, it is length x width, as stated above. But that does not work for circles, ellipses, triangles, other quadrilaterals and polygons and many other shapes, all of which have areas. A perimeter is the sum of all the lengths bordering the shape. The perimeter of a rectangle is NOT length x width x length x width but their sum! But again, that does not work for most other shapes.

Multiply the length by the width, and you will get your area. For example... a standard piece of paper has two long sides, and two short sides. The two short sides are exactly the same length, and the two long sides are exactly the same length. The length of a long side is 11 inches and the length of a short side is 8.5 inches. To find the area you would multiply 11x8.5 which equals 93.5. Your area would then be 93.5 square inches. The equation is l*w=a l being length w being width a being area this equation will work for any squares or rectangles!

Volume = Length x Width x Height. If the prism is square, then either Height = Width or Height = Length In the first case, Volume = Length x Width2 and so Width = sqrt(Volume/Length) and Height = Width. In the second case, Volume = Length2 x Width and so Width = Volume/Length2 and Height = Length.

Here is what you are supposed to do: * Convert to consistent units. For example, convert the cm to mm. * Write an equation for the diagonal (in terms of length and width). Replace the known diagonal. * Write an equation for the area, in terms of length and width. * Solve the two equations simultaneously. * Calculate the perimeter.

To work out the area of a rectangle you simply multiply the width by the length:Here the width and length are 7 and 8 so by multiplying them together you get:56Remember, that if units are involved such as centimetres, you must write a squared sign after the digits. For example if it were 7cm and 8cm, you would write the answer as 56cm2

Related questions

You times length by width

The length and width of a square are equal. Thus, find the square root of the area and the answer = length= width.

length*width = 2*width*width i.e square the width and multiply by 2

Length x width

To work out the area of a rectangle, multiply the length and the width. Therefore: Area=23*20=460

If you pretend that the width is X .Then you'll know that X times length = area. So if you say the length is 5 ,then the area is 10 the X must be 2 so the width is 2you simply work out what times the length makes the area.

width times length multiplied.

If it is a quadrilateral, you take the length times the width.

this answer is simply division just for a reminder of what I am doing here are how to work these length times width = area area divided by width = length area divided by length = width. we will be doing the second equation so 132 divided by 6 = 22 answer is 22

2D-Height x Width 3D-Height x Width x Length

area is................ length x width perimeter is .......... length x width x length x width * * * * * WRONG. Area is the amount of space occupied by a shape. In the case of a rectangle, it is length x width, as stated above. But that does not work for circles, ellipses, triangles, other quadrilaterals and polygons and many other shapes, all of which have areas. A perimeter is the sum of all the lengths bordering the shape. The perimeter of a rectangle is NOT length x width x length x width but their sum! But again, that does not work for most other shapes.

Its width is 11.5 cm.Knowing that, it will be easy for you to reproduce the work.

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