Question

the area of a square field is 4900cm² .The length of the side of the filed (in m ) is​

Answer 1

Answer:

7m

Step-by-step explanation:

Before finding the length of the side of the field, we have to convert first.

In order to convert 4900cm² we have to divide the figure by 100 or put the decimal point two decimal places to the left. The reason why we are doing this is because 100cm=1m. This would give us the result of 49cm².

In order to find the side of the field, we have to find the square root of 49m².

The reason why we are doing this is because the formula for finding the area of a square (Side x Side) would give the same as Side² which is why you can use either of these ways when finding the area of the square. And just as we would use square root to find out what is the number that created the product, ( ie 6²=36, $\sqrt[2]{36}$= 6) we would also use the square root to find the length of the side of the square.

The square root of 49m² would be 7m.