Question

The side of a square is 2 and 7/2 inches. Use the area formula A=s2 to determine the area of the square.

1. A= 196 square inches

2. A= 128 square inches

3. A= 49 square inches

4. A= 4 square inches

*will give brainleist answer*

Answer 1

2 to the power of (7/2) can be written as sqrt (2^7), since the 2 on the bottom of the exponent can be turned into a root.

Then, since sqrt (2^7) is the side length, we square it to get the area. If you square a square root, they cancel out, so you are left with 2^7 = 128 inches squared.

The answer is choice (B).

Answer 2

Answer:

Answer:

Option B is correct

128 square inches

Step-by-step explanation:

Area of square(A) is given by:

.....[1]

where,

s is the side of the square.

As per the statement:

The side of a square is inches.

⇒s = inches.

Substitute in [1] we have;

square inches

Therefore, the area of the square is, 128 square inches.