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## Geometry (all content)

### Course: Geometry (all content)>Unit 7

Lesson 2: Area of rectangles

# Finding missing side when given area

Lindsay finds the missing side length on a rectangle when given the area of the rectangle.  Created by Lindsay Spears.

## Want to join the conversation?

• I was working on the area of the quadrilaterals but couldn't find the answer to this question. The question was "A square rug has an area of 72.25ft squared. What is the length of one side?" How do I solve it?
• Find the square root of 72.25.
• how do you find the width when you have no length?
• If the area is given then the formula would be: (area/width=length) because (length x width = area)
• can someone tell me what is area plz?
• area is multiplying x2
• How would u find area of a figure/shape if you didn’t have cut out squares?How would it be labeled?
• There would be lines stretching from side to side of both the width and the height . That’s how they would be labeled, and you would multiply the length of the width and the of the height to get your answer.
(1 vote)
• can someone tell me what area means?
• Area is the space inside a shape.
• I dont understand how do u notice whats the missing lenght
• To solve for the missing length when given the area uses division. If you have a rectangle with the area of 10 and you know that one side is 5 then to figure out the other side you can do 10 divided by 5 to get 2 or do 5 x __ = 10 and then solve for the blank which is the same thing
• how can special you divde it by the length or width
• You can also use division to solve this problem.

Area/Length = Width
Area/Width = Length

In this case, we know the length is 10 squarecentimeter, and that the total area of the picture is 80 squarecentimeters. By dividing 80 (area) with 10 (length) we're left with 8 (width).