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If a is 3cm and tanA is .75, what is B? Right triangle problem

 Oct 22, 2014

Best Answer 

 #1
avatar+128475 
+5

Assuming that "a" is one leg and "b" is the other leg, we have

tanA = a/b = 3/b = .75 = 3/4

So "b" must be 4

And if "B" refers to angle B, we have

tan B = (4/3)  →

tan-1(4/3) = B = 53.130102354156°

 

 Oct 22, 2014
 #1
avatar+128475 
+5
Best Answer

Assuming that "a" is one leg and "b" is the other leg, we have

tanA = a/b = 3/b = .75 = 3/4

So "b" must be 4

And if "B" refers to angle B, we have

tan B = (4/3)  →

tan-1(4/3) = B = 53.130102354156°

 

CPhill Oct 22, 2014

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