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How do you do this? An example i got for school was to do this with using Adjacent and Hypotenuse values. Adjacent side = 15, Hypotenuse = 18. How do you find the answer?

(It's 33.6, but how do you get the answer?)

 Mar 19, 2015

Best Answer 

 #1
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+10

Use the Pythagorean Therorem: $$h^2=a^2+b^2$$  where h is the hypotenuse.

Using you data, the third side of the triangle is 9.94.

From there note that the tangent function involves the opposite side over the adjacent...but you are not interested in the tangent (you already have it). You need the angle, which you can obtain through the arctangent. The arctangent (9.94/15)=33.53.

 Mar 19, 2015
 #1
avatar
+10
Best Answer

Use the Pythagorean Therorem: $$h^2=a^2+b^2$$  where h is the hypotenuse.

Using you data, the third side of the triangle is 9.94.

From there note that the tangent function involves the opposite side over the adjacent...but you are not interested in the tangent (you already have it). You need the angle, which you can obtain through the arctangent. The arctangent (9.94/15)=33.53.

Guest Mar 19, 2015
 #2
avatar+1693 
+9

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 Mar 20, 2015

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