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Question

The area of a rectangular field is 8148m^2.

If the width of the field is 84m, what is its length?

Answer 1

Solve for the unknown in the formula for the area of a square.

Given the formula for the area of a square is A=lw, replace the known variables with constants.

A = 8148m²

w = 84m

l = ?

Substituting:

8148m² = 84m * l

l = 8148m² / 84m

l = 97m [m² / m = m]

Answer 2

lw = A l = A/w = 8148m²/84 m