The length of a rectangle 9cm more than its breadth . If its area 36 sq.cm. find the length and breadth
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Answer:
Area of rectangle = L×B
36 = 9 ×B
36/9 = B
B = 4cm
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Step-by-step explanation:
Let the length of the rectangle be x
the breadth of the rectangle be x-9
Area of the rectangle = 36 sq.cm.
Formula,
Area of the rectangle =l x b
36 = (x) x (x-9)
36 = x²-9x
0 =x² - 9x - 36
0 =x² - 12x + 3x - 36
0 = x(x-12) - 3 (x-12)
0= (x-12) (x-3)
x-12=0 or x-3=0
x=12 or x=3
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