SOLUTION: Right triangle find length of b Only known length is c (hypotenuse)= 15 cm Angle A= 72 degrees Angle C= 90 degrees

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Question 607154: Right triangle find length of b
Only known length is c (hypotenuse)= 15 cm
Angle A= 72 degrees
Angle C= 90 degrees
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

right Triangle, ∠A = 72° and ∠C = 90° and c = 15cm, Find b

cos 72 = b/15,  b = 15cos72 = 4.635