Answer
15 cm²
Explanation
The shape referred to in this question is not provided. I was able to find in the internet and it is the one attached.
The area of a square = length × length
= l²
The length of each grey = 1 cm
The area of each grey = 1²
= 1 cm²
There are 15 square greys in that shape.
The total area of the shape = 15 × 1 cm²
= 15 cm²
