Question

What expression shows the length, BC, of the base of the stand?

Answer 1

is it Cot?

Answer 2

cos------- cah
sin------- soh
tan------- toa

o=opposite side
h=hypotenuse
a=adjacent

Which sides do you know in respect to the angle?

Answer 3

i know the opposite is 7, but I don't know which function to use for it

Answer 4

Rather, I don't know which other leg i need to solve for (hyp or adj since the angel is in between them)

Answer 5

Angle*

Answer 6

Great you know the opposite. The base in respect to the angle is called the adjacent side. Which one of those trig identities has the opposite and adjacent side in them?

Answer 7

tangent

Answer 8

Oh I didn't read the problem correctly. I didn't see I had to solve for the base.

Answer 9

Yes yes

\[\tan(55^0)=\frac{o}{a}=\frac{7}{base}\]
\[\tan(55^0)=\frac{7}{base}\]

solve for base


\[base=\frac{7}{tan(55^0)}\]

Answer 10

Would this make 7 Cot 55 the same thing as 7 /Tan 55? being recipricals and what-not?

Answer 11

@Romero

Answer 12

yes

Answer 13

\[\frac{\sin(x)}{\cos(x)}= \tan(x)\]
\[\frac{1}{tanx}= \frac{1}{\frac{\sin(x)}{\cos(x)}}=\frac{\cos(x)}{\sin(x)}=\cot(x)\]