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Answer:

7 is width

Step-by-step explanation: i got it right

The length of the rectangle is 7 unit.

What is rectangle?

A rectangle is a plane shape that has pair of opposite sides equal.

To calculate the length of the rectangle, we use the formula below

Formula:

  • A = LW............ Equation 1

Where:

  • A = Area of the rectangle
  • L = Length of the rectangle
  • W = Width of the rectangle

From the question,

Assuming the width of the rectangle is y unit

  • A = 56 unit
  • L = (y+1) unit
  • W = y unit

Substitute these values into equation  1

  • 56 = y(y+1)
  • 56 = y²+y

Solving the quadratic equation,

  • y = +7 or y = -8

Since length can not be negative,

  • y = 7 unit.

Hence The length of the rectangle is 7 unit.

Learn more about rectangle here: https://brainly.com/question/17297081

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