Question

If each grey square is 1cm in width and length, then what is the area of the shape?

Answer 1

Hello Dear.

Given ⇒
Length and Breadth of the Square (or Side of the Square) = 1 cm.

Now, Using the Formula,
Area of the Square = Side² 
∴ Area of the square = (1)
∴ Area of the Square = 1 cm².

Now, Area of 1 Square = 1 cm².

In Question, it is not perfectly given, what is exactly the shape.Therefore, let us assume that the shape has 10 similar square.

∴ Area of the shape = Number of Square × Area of 1 square.
  = 10 × 1
  = 10 cm²


[Note ⇒ The answer to this question is not sure. since the perfect shape is not given. But, If the Shape is given in yours book, you can see that apply the same method.]

Hope it helps.

Answer 2

The options for this question are missing. here are the missing options:

A.22cm²

B.13cm²

C.15cm²

D.12cm²

Answer

First of all we will find the area a^2= area of square = a(a)  

We already know that a = 1 cm

area of 1 block = 1 (1) =1 cm^2

as the area of each block is 1 cm^2  

the area of 15 blocks = 1 cm^2 (15) (there are total of 15 blocks)

So the option C is the correct answer.

If there is any confusion please leave a comment below.