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melb46
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#1
Report Thread starter 16 years ago
#1
Hi, can you help solve this please?

A rectangular garden of width w metres and length (w + 4)metres

The length of the garden's diagonal is d metres, so

d(squared)= 2w(squared) +8w + 16 ........after working out pythagora's

Given also that d must be at least twice as big as w,
show thar the maximum value of w can be expressed in the form
(a = b(square root)3)

Mel
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melb46
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#2
Report Thread starter 16 years ago
#2
Sorted it now. It's easy you just use the quadratic formula.

Mel
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not1
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#3
Report 16 years ago
#3
(Original post by melb46)
Sorted it now. It's easy you just use the quadratic formula.

Mel
2root3 - 2?
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mikesgt2
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#4
Report 16 years ago
#4
(Original post by edders)
2root3 - 2?
I got:

2 + 2root3
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Harry Potter
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#5
Report 16 years ago
#5
(Original post by mikesgt2)
I got:

2 + 2root3
Me too. Seems a bit of a strange question. Is it a-level or gcse or something else?
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