If the area of a square with side x is 9, what is the area of a square of side 4x?
A.) 36 B.) 144 C.) 212 D.) 324 E.) 1296
Area of a square is one side squared, or multiplying length by width, which is the same result.
x² = 9 {squaring one side of the given square equals 9} x = 3 {took the square root of each side} The measurement of one side of the given square is 3. (4x)² {squaring one side of the other square to find the area} = [4(3)]² {substituted 3, for x, into 4x} = 12² {multiplied 4 by 3} = 144 {evaluated the exponent} B.) 144 Ask Algebra House Comments are closed.

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