the length and breadth of a rectangular field are in the ratio 3:2 if its breadth is 12 cm find the perimeter
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Ans is 21 600 m²
Step-by-step explanation:
The perimeter is 600m
Perimeter of rectangle = 2 × (length + breadth)
600 = 2 × (length + breadth)
Divide both sides by 2,
Length + breadth = 300
Now we have to find the length and breadth.
We know they are in the ratio of 3:2, so...
3 + 2 = 5
Length = (3/5) × 300 = 180 meters
Breadth = (2/5) × 300 = 120 meters
Now we know the length and breadth, we move to find the area.
Area of the rectangular field = length × breadth
= 180 × 120 = 21 600 m²
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