Question

Find sin(α) in the triangle.

Answer 1

Answer:

sin a = 0.689

Step-by-step explanation:

in the image

Answer 2

Answer:

$sin\alpha =0.689$  

Step-by-step explanation:

$cos\alpha = \frac{(29)^{2}+(21)^{2}-(20)^{2} }{2(21)(29)} =\frac{882}{1218} =0.724$

equivalent to:$\alpha =cos^{-1} (0.724)=43.61^{o}$

$sin43.61=0.689$

Hope this helps