need help with tangents

Question

anonymous · Answer

|dw:1351197716972:dw|

amistre64 · Answer

you need more information

amistre64 · Answer

|dw:1351198637135:dw|

with the information that you have provided, we cannot determine a difference between A and A'

anonymous · Answer

the base is 4

amistre64 · Answer

good, and do you recall how to define a tangent?

anonymous · Answer

no

amistre64 · Answer

well, it is one of three elementary trig function that you really need to commit to memory

amistre64 · Answer

the tangent of an angle is equal to the ratio of the opposite leg to the adjacent leg

amistre64 · Answer

|dw:1351198877526:dw|

amistre64 · Answer

$$tan~A=\frac34$$
in order to determine the measure of A, you need to use the inverse tangent function
$$A=tan^{-1}~\frac34$$

anonymous · Answer

Can you explain.

amistre64 · Answer

i just did explain ...

amistre64 · Answer

can you be more specific about what your confusion might be?

anonymous · Answer

I have to use a table to find angle A to the nearest degree.

amistre64 · Answer

do you have a table of tangents?

anonymous · Answer

yes

amistre64 · Answer

then you need to calculate 3/5  because im pretty sure your table uses decimal values

amistre64 · Answer

3/4 ... had a stray thought

anonymous · Answer

so 3/4 = 75 degrees

amistre64 · Answer

3/4 = .7500

on your table, you should have a list of angles and their decimal ratio values

look in the decimal ratio column for a value that is nearest to .7500 and read off the angle that it corresponds to

amistre64 · Answer

it should be about 35 to 38 degrees

anonymous · Answer

.7536 is 37 degrees is that the answer

amistre64 · Answer

that should do it

anonymous · Answer

Are you pretty sure that's the correct answer?

amistre64 · Answer

lol, the wolf likes it http://www.wolframalpha.com/input/?i=arctan%283%2F4%29

anonymous · Answer

Thank you very much for youre help!!!

amistre64 · Answer

youre welcome ;)