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#1 2007-02-01 05:09:16
- Neha
- Member
- Registered: 2006-10-11
- Posts: 173
Help Please
Find y, A, and B
\ 120 dg /
_____\_____________________________/___>____
\ 29/3 /
8 \ / (3A)dg
----------------------------------------------------->------
\ /
\ /
\ /
15 \ y /
\ /
\ /
-------------------------------------------------->-------
\ /
\ / (5B)dg
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#2 2007-02-01 05:24:05
- luca-deltodesco
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- Registered: 2006-05-05
- Posts: 1,470
Re: Help Please
the diagram is a bit confusing, any chance you could draw it out on the computer and upload the picture?
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#3 2007-02-01 06:45:39
- Neha
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- Registered: 2006-10-11
- Posts: 173
Re: Help Please
Find y, A, and B
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#4 2007-02-01 07:20:44
- luca-deltodesco
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- Registered: 2006-05-05
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Re: Help Please
since all the 3 lines coming down a parallel, the ratio between the left edges 8 and 15 will be the same as 29/3 and y
so:
since 3A and 5B are angles between the same line, and lines that are paralell, 5B angle can be translated all up the line, so that 5B + 3A = 180. the also means, that the angle opposite 120 = 5B, so B = 24. then 3A = 180-24 = 156, A = 53
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