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Alex73 [517]
4 years ago
8

Find, correct to five decimal places, the length of the side labeled x. a = 25 cm, b = 3π 8 rad

Mathematics
1 answer:
frosja888 [35]4 years ago
6 0
I am assuming from What I have found is that a is the base , b is angle between a and x and x is the hypotenuse . 
So we know that 
cos θ =base/hypotenuse 
here θ = 3Ď€/8 =67.5 degree 
cos 67.5 =0.38268 
so  
0.38268=a/x 
x=25/0.38268 
x=65.32873
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