Question

In: Advanced Math

Sum of the areas of two squares is 468 m2. If the difference of their perimeters is 24 m, determine the sides of the two squares.

Sum of the areas of two squares is 468 m2. If the difference of their perimeters is 24 m, determine the sides of the two squares.

Solutions

Expert Solution

Let x and y be the side length of squares.

 

x2 + y2 = 468 ----(1)

 

4x - 4y = 24 

 

x - y = 6

 

x = 6 + y ----(2)

 

(6+y)2 + y2 = 468 

 

36+y2+12y+y2-468 = 0 

 

2y2 + 12y - 432 = 0

 

y2 + 6y - 216 = 0

 

(y - 12)(y + 18) = 0

 

y = 12 and y = -18 (not admissible)

 

If y = 12, then x = 18

 

So, the side length of required squares are 12 and 18 respectively.


the side length of required squares are 12 and 18 respectively.

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