Question

a square of side is 10 metres if side is doubled then its area will be​

Answer 1

Answer:

let

a is a side of area

a=10m

then area=100m^2

then doubling sides

a=20m

area of new square is=400m^2

Answer 2

Answer:

400m^2

Step-by-step explanation:

A square has a side of 10 meters.

In a square all the four sides are of equal length.

Hence, All the four side measures 10 meters.

Now, according to the problem, the side is doubled of the initial value.

So, now each sides would be measuring 10*2=20 meters.

We know that area of a square is= (Length of one side)^2

So, by multiplying length of one side with itself it comes down to = 20 *20 m^2.

                                                                  = 400 m^2.

 Hence the area of the square after doubling is 400m^2.