Question

The area of a rectangular room is 165 sq m if its lenth is 4 m more than its breadth what is the length and breadth of the hall​

Answer 1

Step-by-step explanation:

Area of rectangle = lb

165 = b ( b + 4 )

165 = b² + 4b

b² + 4b - 165 = 0

b² - 11b + 15b - 165 = 0

b ( b - 11 ) + 15 ( b - 11 ) = 0

b = 11 or - 15

so rejecting - ve value we get

b = 11 m

and length = 15 m

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