Question

Estimate the area of the square shown below A.) 36 ft^2B.) 20 ft^2C.) 100 ft^2D.) 81 ft^2

Answer 1

The area of a square can be calculated by using this formula:

`A=s^2`

Where "s" is the length of a side of the square.

In this case, you can identify that:

`s=9.7ft`

Then, in order to estimate the area of the square, you can follow these steps:

1. Round the length "s" to the nearest whole number. Since the first digit after the Decimal point is 7 and:

`7>5`

You must round up:

`s\approx10ft`

2. Knowing that:

`10^2=10\cdot10`

You can determine that:

`A\approx100ft^2`

Hence, the answer is: Option C.