Question 68

The area of a square is thrice the area of a rectangle If the area of the square is 225 sq cm and the length of the rectangle is 15 cm what is the difference between the breadth of the rectangle and the side of the square ?

Solution

area of square = $$(side)^2$$ = 225

Side of square = 15 cm

It is given that area of square is thrice area of rectangle ,so

225 = 3 x L x B where L and B are length and breadth of rectangle.

Given that length of rectangle is 15 cm so B = 5 cm

Side of square - Breadth of rectangle = 15 -5 =10 cm

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