3. Find the percentage increase in the area of a rectangle, if there is an
increase of 10% in both length and breadth of the rectangle.
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Answer:
∴ The percentage in area is 44%.
Step-by-step explanation:
GIVEN: Each sides of a rectangle are increased by 10%.
CONCEPT: Area of rectangle is directly proportional to the product of length and breadth.
FORMULA USED: Area of rectangle = Length × Breadth.
CALCULATION: Suppose the length and breadth of the rectangle are x and y respectively. ...
∴ The percentage in area is 44%.
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