Which ratio represents the cos(θ)?

Find tan(θ).

Find the value of tan(X).

 Which triangle below shows the ratio as $\sin\left(x\right)=\frac{b}{c}$  ?

 Which triangle below shows the ratio as $\sin\left(x\right)=\frac{a}{c}$  ?

 Which triangle below shows the ratio as $\cos\ \left(x\right)=\frac{a}{c}$  ?

 Which triangle below shows the ratio as $\cos\ \left(x\right)=\frac{a}{b}$  ?

 Which triangle below shows the ratio as $\tan\ \left(x\right)=\frac{c}{a}$  ?

Which triangle below shows the ratio as  $\sin\ \left(x\right)=\frac{t}{u}$  ?

Which triangle below shows the ratio as  $\cos\ \left(x\right)=\frac{u}{v}$  ?

Which triangle below shows the ratio as  $\tan\ x=\frac{t}{v}$  ?

Which triangle below shows the ratio as  $\tan\ \left(x\right)=\frac{t}{u}$  ?

Select all that apply: 

What is true in respect to the relationship of the sine and cosine of complementary angles? A and B are the acute angles of the right triangle.