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
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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
#answerwithquality #BAL
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