How to find an equation for the area of a square?
If the length of a square is decreased by 1 unit, the area is now 8 square units. What's the equation for the area of this square.
If the length of a square is decreased by 1 unit, the area is now 8 square units. What's the equation for the area of this square.
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1 Answer
Jun 6, 2018
Explanation:
First choose a variable to use in writing an equation,
Let the original length of the square be
If it has been decreased by
The area of a square is found from
The new area is
We can solve the equation: