If the side of a square increases by 8 cm, its area increased by 120 sq.cm. the side of the square is :
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side of square is 3.5cm
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Hello Friend!!!
Let side of square be x ,then area=x²
Increase by 8cm = x+8 , then new area = (x+8)²
Hence x²+120 = (x+8)²
=x²+120= x²+64+16x
=16x=120-64
= x = 56/16
= x = 3.5cm
Hope it helps!!!
Let side of square be x ,then area=x²
Increase by 8cm = x+8 , then new area = (x+8)²
Hence x²+120 = (x+8)²
=x²+120= x²+64+16x
=16x=120-64
= x = 56/16
= x = 3.5cm
Hope it helps!!!
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