When 169 children are in a square ground, there are 13 children along the length and 13 children along the breadth. How many more children are needed to arrange 15/15 children along the length and breadth?

none because 13 times 13 is 169

Step-by-step explanation:

stops on an even number.

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

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