Question

a major arranges his soliders in rows to form a perfect square 40 soliders are left out if the total no. of soliders are 6281, find the no. of soliders in each rows ​

Answer 1

Answer:

79 soldiers

Step-by-step explanation:

Since 40 soldiers were not included in the square, the square consists of 6241 soldiers.  6241 represents the area of the square, and the rows (r) represents a side of the square.   Since the area of a square = the length of the side squared, then $6241 = r^{2}$.  

So $r = \sqrt{6241}$

r = 79