the length of a rectangular field is 30m more than its breadth . if the perimeter is 640m , find the length of the feild
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I am sorry for my untidy handwriting.
Hope this helps you in your work.
Hope this helps you in your work.
Attachments:
aashi39:
no sampurna its not so untidy mine is also not so good leaving this all thanks
Is the answer correct?
no in my book its given 100m2
Oops I am really sorry for my mistake
Well actually I had mase a
Tell me if you are asked to find the length how can it be in terms of m2?
well i don't know properly because my maths is very weak
Check the answer and the question once again for I think that my answer is correct
you can also ask your teacher about it
Answered by
15
Question:-
the length of a rectangular field is 30m more than its breadth . if the perimeter is 640m , find the length of the feild.
Solution:-
Let, L be the length of rectangle and B be
the breadth rectangle.
By Question
=> L = B + 30 ...... ( 1 )
we know formula
=> perimeter of rectangle = 2(L + B )
=> 640 = 2 ( L + B )
From ( 1 )
=> 640 = 2 ( B + 30 + B )
=> 640 = 2 ( 2B + 30 )
=> 640/2 = 2B + 30
=> 320 = 2B + 30
i.e.
=> 2B + 30 = 320
=> 2B = 320 - 30
=> 2B = 290
=> B = 290/2
=> B = 145 m
put value of B in equation ( 1 )
=> L = B + 30 = 145 + 30 = 175 m
Hence length of rectangular field
is 175 m
i hope it helps you.
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