Posted by **james** on Tuesday, May 18, 2010 at 5:58pm.

in triangle abc, angle c is a right angle, AC=8,Bc=15 and AB=17

a.find Sine a

b.Find cosine A

c.Find Sine B

d. Find COsine B

E. the measure of angel A

f. the measure of angela b

Can u tell me the answers and how to do it.

Because im in 8th grade

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