the breadth of a rectangle is 3 by 4 of its length if the perimeter is 210 find the diameter of the rectangle
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Answer:l=60 b=45
Step-by-step explanation:
Let length be x, then breadth = 3/4x
Perimeter= 2(length + breadth)
210= 2( x+3/4x)
= 2( 7x/4)
= 7x/2
420= 7x
Therefore, x =420/7 =60
Hence, l=60 and b=45
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