Question

current skill
= 100%
use the key provided above to determine the percent that is represented by the shaded area of the diagram shown below.
symbol optional

Explanation:

Step1: Analyze the first square

The first square is completely shaded, so it represents \(100\%\) or \(1\) whole.

Step2: Analyze the second square

The second square is a \(10\times10\) grid (since the first square is \(10\times10\) and represents \(100\%\)). Let's count the shaded cells. The shaded part has \(2\) full columns (each column has \(10\) cells) and \(1\) extra cell. So the number of shaded cells in the second square is \(2\times10 + 1=21\). Since the total number of cells in the second square is \(100\), the percentage for the second square is \(\frac{21}{100}\times100\% = 21\%\).

Step3: Calculate the total percentage

Add the percentage from the first square and the second square. The first square is \(100\%\) and the second is \(21\%\), so the total is \(100\%+ 21\%=121\%\).

Answer:

\(121\%\)