In ΔABC , AB 3 and AC = 9. Find m∠ to the nearest degree.

Mathematics
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In ΔABC , AB 3 and AC = 9. Find m∠ to the nearest degree.

a.  18

b.  58

c.  72

d.  52

May 5th, 2015

m(<C)=tan^-1(3/9)=tan^-1(1/3)=18.4 deg

m(<B)=90  - 18.4 = 71.6 deg

May 5th, 2015

so it's the answer a or c ?

May 5th, 2015

They have to tell you which angle they are asking about, is it C or B. If it's C the answer is a. If it's B the answer is c.

In the statement of the problem above that was not given....

May 5th, 2015

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May 5th, 2015
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May 5th, 2015
Dec 10th, 2016
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