SOLUTION: The ratio of the length and breadth of a rectangular photo is 3:2. The area of the photo is 864cm square. Find its length.

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Question 769642: The ratio of the length and breadth of a rectangular photo is 3:2. The area of the photo is 864cm square. Find its length.
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Taking the ratio 3:2
3x * 2x = 864
6x^2 = 864
x^2 = 144
x =sqrt%28144%29
x = 12
So, Length = 3* 12 = 36cm
Breadth = 2 * 12 = 24cm
36 * 24 = 864cm^2
Hope this helps.
:-)