II- Q3 Unit 2 Test Review

If θ is in Quadrant III and cosθ -2/3, then sinθ = _____.

• $-\frac{3}{2}$

• $-\frac{\sqrt{5}}{3}$

• $\frac{\sqrt{5}}{3}$

• $\frac{3}{2}$

If secθ = 4, then sinθ = _____.

(Secant is hypotenuse/adjacent)

• $\pm\frac{1}{4}$

• $\pm\frac{1}{2}$

• $\pm\frac{\sqrt{15}}{4}$

• $\pm\frac{1}{4}$

Find the ratio in simplest form.

30 minutes to 2 hours

(Remember that there are 60 minutes in 1 hour)

• $\frac{1}{4}$

• $\frac{1}{15}$

• $\frac{15}{1}$

Find the ratio in simplest form.

30:6

• 1:5

• 4:1

• 5:1

Solve for x.  $\frac{x}{3}=\frac{5}{8}$  

•  $\frac{8}{15}$  

•  $1\ \frac{7}{8}$  

•  $4\ \frac{4}{5}$  

Solve for x.

12:15 = x:5

• 4

• 36

• 60

Solve for x.  $\frac{2}{x}=\frac{6}{2}$  

•  $\frac{2}{3}$  

•   $1\ \frac{1}{2}$  

• 6

Find the ratio of x to y.  $\frac{x}{5}=\frac{2}{3}=\frac{5}{y}$  

•  $\frac{2}{3}$  

•  $\frac{4}{9}$  

• 1

Which polygons are similar?

• 1 & 4

• 1 & 2

• 2 & 3

• 3 & 4

Which triangle is NOT similar to all the others?

• a

• b

• c

• d