more geometry help PLEASE!!!!!?

In triangle JKL, at the right MN l l JK. Find NK

http://i56.photobucket.com/albums/g198/simplybebop/untitled1.jpg

refer to figure, find sin A to four decimal places

http://i56.photobucket.com/albums/g198/simplybebop/untitled3.jpg

Find M arc YZ

http://i56.photobucket.com/albums/g198/simplybebop/untitled4.jpg

Top 1 Answers

A few days ago

Anonymous

Favorite Answer

1. |LJ|/|LK|=|LM|/|LN|

36/|LK|=8/12=2/3,

whence

|LK|=(3/2)36=54

So, |NK|=|LK|-|LN|=54-12=42

2. By Pythagorean Theorem

|AB|=sqrt(5^2+12^2)

=sqrt(25+144)=13

sinA=|BC|/|AB|=5/13=0.3846

3. 48°=1/2(M arc WX + M arc YZ)

implies

62°+ M arc YZ=96°

M arc YZ = 34°

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