Algebra Practice Test 2025 – Complete Exam Preparation

Question: 1 / 400

What is the estimated length of one side of a square living room with an area of 220 sq. ft.?

14 ft

15 ft

16 ft

To find the length of one side of a square living room when the area is given, we use the formula for the area of a square, which is:

\[ \text{Area} = \text{side}^2 \]

Given that the area is 220 square feet, we can set up the equation:

\[ \text{side}^2 = 220 \]

To find the length of one side, we take the square root of both sides:

\[ \text{side} = \sqrt{220} \]

Calculating the square root of 220 will give us an approximate length for one side. The square root of 220 is about 14.83 feet. Since we are looking for the best estimate among the provided options, we can round this to the nearest whole number.

From the options, 15 feet is the closest to 14.83 feet, making it the most suitable choice. While 16 feet seems like a possibility, it is slightly further from the calculated root. Thus, in this case, the estimated length of one side of the square living room with an area of 220 sq. ft. is best represented by 15 feet.

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