sum of the areas of two squre is 468m qt the diffrent of their perimeter 24 m find the side of squre
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If the difference of their perimeters is 24 m, find the sides of the two squares. According to question, (X)² + (Y)² = 468 m² ——(1). Side of second square = Y = 12 m.
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let side of larger square be x m
perimeter of larger square =4x m
perimeter of larger square -perimeter of smaller square=24m
4x-perimeter of smaller square =24
perimeter of smaller square 4x-24
4×side of smaller square =4x-24
side of smaller square =(x-6)m
ATQ
x²+(x-6)²=468
x²+x²-12x+36=468
2x²-12x-432=0
x²-6x-216=018-6
x²-18x+12x-216=0
x(x-18)+12(x-18)=0
(x-18)(x+12)=0
x-18=0,x+12=0
x=18,x= - 12
since side of a square can never be negative
so, side of larger square is =18m
side of smaller square is =18-6 =12 m.
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