Help will be appreciated ;)
In the triangle shown below, find m∠B. Round to the nearer degree.

Question

Help will be appreciated ;)
In the triangle shown below, find m∠B.  Round to the nearer degree.

anonymous · Answer

attachment

anonymous · Answer

m<B = tan^-1(8/15)

anonymous · Answer

tan inverse=tan^-1

anonymous · Answer

attachment

ranga · Answer

You can take sine, cosine or tan of angle B and then compute angle B.
tan(B) = opposite / adjacent = 8/15
tan(B) = 8/15
B = inverse tan of 8/15

In your calculator set the angle to degree (instead of radian)
Press tan^-1(8/15) and you will get the angle B in degrees.
Round it to nearest degree.

anonymous · Answer

SOH CAH TOA

sin(theta) = opposite length / hypotenuse
cos(theta) = adjacent length / hypotenuse
tan(theta) = opposite / adjacent

anonymous · Answer

I got a 0.48 as my answer...?

anonymous · Answer

That's what I got too. That's why I linked the picture that I did. >.>

ranga · Answer

tan(B) = 8/15
B = tan^1(8/15)
using the inverse tan function of the calculator I get B = 28 degrees

The .48 you got is in radians.  They want the answer in degrees.  So you need to set your calculator to degrees.

anonymous · Answer

27.5! thank you very much (: @ranga

ranga · Answer

The question asks you to round it to the nearest degree.  So 28 degrees.