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3 years ago

If the area, A, of a rectangle is 121, and the length, l, is equal to the width, w, what is the length of the rectangle?

Mathematics

2 answers:

Over [174]3 years ago

8 0

Answer: 11

Step-by-step explanation:

plug into the formula for area

lw=A

11 x 11 = 121

Llana [10]3 years ago

5 0

<h3>Answer: 11</h3>

Through trial and error, you should find that 11*11 = 121

A more methodical approach is to let x be the length and width, so x*x = x^2 is the area. Set this equal to 121 and solve for x. Use the square root to undo the square

x^2 = 121

sqrt( x^2 ) = sqrt( 121 )

x = 11

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