Bosco wishes to start a 200 m2 rectangular vegetable garden. Since he has only 50 m barbed wire, he fences three sides of the rectangular garden letting his house compound wall act as the fourth side of the fence. Find the dimensions of the garden.
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QUESTION :-
Bosco wishes to start a 200 m2 rectangular vegetable garden. Since he has only 50 m barbed wire, he fences three sides of the rectangular garden letting his house compound wall act as the fourth side of the fence. Find the dimensions of the garden.
ANSWER:-
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• DIMENSION TO RECTANGULAR VEGETABLE GARDEN,
LENGTH= L m.
BASE= B m.
Length of the barbed wire = 50m
According to the problem given,
=>l+b+l=50m.
=>.°.2l+b=50
=>.°.b=50-2l............(1)
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•AREA OF THE GARDEN:- 200m².
=>l b =200m²
=>l(50-2l)=200............(from 1)
=>.°.50L -l2²=200
Divide each term by 2, we get
25L- L²=100
=>.°.25L- L²+100=0
=>l²-20l -5l +100=0
=>l(l-20)-5(l-20)=0
=>.°.(l-20)=0 or (l-5)=0
=>.°. L =20 & L=5.
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Case 1:
If l = 20, then b = 50-2l
=> b = 50 - 40 = 10,
Case 2:
If l = 5 ,then b = 50-2l
=> b = 50 - 10 = 40,
Therefore,
Dimensions of the garden are (20,10) Or (5,40)
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