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a A pipe of wire of length of I cm is bent into the shape of a rectangle the area enclose by the rectangle 71/2.
(a)if the area of the side of the rectangle is xcm .find an expression of l in terms of x.
(b)if the length of the wire is 13cm.find the length of the side of the rectangle.



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  1. If the area of the side of the rectangle is x cm², an expression of L in terms of x is given by L = x/W.
  2. If the width of the wire is 13 cm, the length of the side of the rectangle is 5.46 cm.

Given the following data:

Area of rectangle, x = 71 cm².

Width of rectangle, W = 13 cm.

How to calculate the area of a rectangle?

Mathematically, the area of a rectangle can be calculated by using this formula:

A = LW

Where:

  • A represents the area of a rectangle.
  • L represents the length of a rectangle.
  • W represents the width of a rectangle.

How to find an expression of L in terms of x?

x = LW

L = x/W.

Therefore, an expression of L in terms of x is given by: L = x/W.

Substituting the given parameters into the expression, we have;

L = 71/13

Length, L = 5.46 cm.

Read more on area of a rectangle here: brainly.com/question/25292087

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Complete Question:

A pipe of wire of length of I cm is bent into the shape of a rectangle the area enclose by the rectangle 71 cm².

(a) if the area of the side of the rectangle is x cm². Find an expression of l in terms of x.

(b) if the width of the wire is 13cm. Find the length of the side of the rectangle.

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