How do you find the measurements of a rectangle?

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earch for the area or perimeter of the rectangle. The area or perimeter of the rectangle and either the length or the width has to be provided to find its dimensions. For this example, use 30 square feet as the area, and 6 feet as the width. Write down the area equation: A = L * W where "A" stands for the area, "L" stands for the length and "W" stands for the width of a rectangle.

Solve the area equation: 30 = L * 6. Divide both sides of the equation by 6, and write down the answer. It will look like this: 5 = L. Keep in mind a rectangle has two equal lengths and two equal widths. The final answer is the dimensions of the rectangle are 6 feet for each of the lengths and 5 feet for each of the widths.

Find the dimensions of the rectangle using the perimeter. For this example, suppose the perimeter is 22 feet and the length is 5 feet. Write down the perimeter equation for a rectangle: P = 2L + 2W where "P" stands for perimeter, "L" stands for the length and "W" stands for the width.

Fill in the perimeter equation. It will look like this: 22 = 2(5) + 2W. Multiply the "2 x 5" on the right side of the equation, and you will now have 22 = 10 + 2W. Subtract 10 from each side of the equation to obtain 12 = 2W. Divide both sides of the equation by 2 to find out what the width is. The final answer is W = 6. So the dimensions of the rectangle are 5 feet for each of the lengths and 6 feet for each of the widths.

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the 3rd option is right

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i am unable to solve this problem

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