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I know the lengths of the hypot. and the base of a rt. triangle. How can I find the angle measures?

 May 18, 2014

Best Answer 

 #3
avatar+130511 
+5

Use the inverse sine to find the angle opposite the base

You will have sin-1(base/hyp) = "theta"

Then, just subtract that from 90...that will give you the other angle.

Of course, I'd probably use the Pythag theorem to find the missing side first, too, since a "two-sided" triangle isn't considered kosher.

 May 19, 2014
 #1
avatar
+5

yes.

by using pythag. thrm. and basic trig u can find the angle measures.

use pythg. thrm. to find missing side

tan^-1(base/missing side)= bottem angel

good luck 

 May 18, 2014
 #2
avatar+118723 
+5

Or you could just use inverse sin or inverse cos and not bother about finding the hypotenuse first. 

 May 19, 2014
 #3
avatar+130511 
+5
Best Answer

Use the inverse sine to find the angle opposite the base

You will have sin-1(base/hyp) = "theta"

Then, just subtract that from 90...that will give you the other angle.

Of course, I'd probably use the Pythag theorem to find the missing side first, too, since a "two-sided" triangle isn't considered kosher.

CPhill May 19, 2014

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