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Q: If the width of the rectangle is 3 inches what is the area?

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To find the area of a rectangle, multiply the length by the width. 3 x 5 = 15. Do not forget to include the units, however - if the units of the rectangle are in inches, then the answer to the question will be 15 inches squared (15 in2).

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The area of rectangle is : 21.0

Perimeter = length + width + length + width = 2 x (length + width) Given: perimeter = 22in length = width + 3in Thus 22 = 2 x (width + 3 + width) 11 = 2 x width + 3 8 = 2 x width 4 = width So the width is 4in.

length = 12/3 = 4 yards

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The area of a rectangle is length times width. If length and width are in inches, the area will be square inches.

Area of a rectangle = L W = (24 x 3) = 72 square inches.

36inches. you multiply length by width to get the area of a 2d object

15 square inches

They are: 3 inches and 5 inches respectively

0.375. I used Siri....

let x be the width let x+3 be the length The area of a rectangle is length X width Area=(x)(x+3) =x^2+3x

To calculate the area of a rectangle :- Measure the length. Measure the width. Multiply the length by the width - the product is the area. EXAMPLE : length = 7 inches, width = 3 inches, Area = 7 x 3 = 21 square inches.

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Assuming that the area given is actually in squareinches, this can be solved as follows: Call the width inches w. Then, from the problem statement, the length is w + 3 inches. The area of any rectangle is the product of its length and width, so that:w(w+3) = 154; or w2 + 3w - 154 = 0, or (w + 14)(w - 11) = 0. This positive value of w for which this equation is true is 11 inches.

A rectangle with one side that is double the length of the other side can be seen as two squares beside each other, that are half the area of the original rectangle, in this case 18 square inches / 2 = 9 square inches. The side of a square is the square root of the area, in this case the square root of 9 square inches, which is 3 inches. Now think about the rectangle again. What we just counted was the side of a square that made up one half of the rectangle you wanted to calculate the area of. So the shorter side of the rectangle is the same as our square, and the longer side is double the length. So the width of the rectangle is 3 inches, and the length is 2 * 3 inches = 6 inches. Or: Area = length x width (A=lw) Area = 18 (in2) Width = w Length = twice width (2w) 18 = (2w)w 18 = 2w2 9 = w2 3 = w The width is 3 in., the length (2w) is 6 in.

You have given 3 dimensions and not the shape. For area you generally need two dimensions, like for a rectangle. The area of this is Length by width.

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