P is 2km from Q and R lies on the perpendicular bisector at the link between P and Q and distance from P to R is 3 km.(adsbygoogle = window.adsbygoogle || []).push({});

1. Find Length for Plan 1

2. " " " Plan 2

3. " " " Plan 3

4. " " " Plan 4

5. Decide which plan would be used if minimizing the cost.

http://www.jeack.com.au/~dngo/maths.bmp

are the diagrams.

i solved question 1 + 2.

just need help from 3 - 5.

if some people do not wish to look at the picture i will give a visual description in words.

diagram 3 = is in a Y shape. the distance in the middle from P to Q is x. and the stroke down which is R, opposite sides of R is x. so alltogether there are 3 unknowns.

diagram 4 = is in a Y shape, P to Q is equal which has sides b. the distance in the middle from P to Q is 120. opposites of R is 120.

i suggest you can please look at the web link

http://www.jeack.com.au/~dngo/maths.bmp thanks.

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# Maths trigonometry help

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