Quiz about Semester Review 2

Question 1

$$\Delta KLM$$ is similar $$\Delta NOP$$ . What proportion would be used to find PN?

Accepted Answer

$$\frac{x}{33}=\frac{8}{23}$$

Answer

$$\frac{33}{x}=\frac{x}{8}$$

Answer

$$\frac{x}{8}=\frac{23}{33}$$

Answer

$$\frac{x}{8}=\frac{8}{33}$$

Question 2

Determine if Triangle LMN and Triangle OPQ are similar.

Accepted Answer

No, corresponding sides are not proportional

Answer

No, included angle is not congruent.

Answer

Yes, $$\Delta LMN\sim\Delta OPQ$$ by SAS

Answer

Yes, $$\Delta LMN\sim\Delta OPQ$$ by ASA

Question 3

In the diagram, QN=6, OP=12.5, and OQ=10. Find the length of $$\overline{PM}$$ .

Accepted Answer

PM=7.5

Answer

PM=8.5

Answer

PM=16

Answer

PM=20

Question 4

Triangle HIJ is dilated by a scale factor of $$\frac{1}{2}$$ to form triangle H'I'J'. What is the measure of HI?

Accepted Answer

Because $$\frac{1}{2}HI=12$$ , $$HI=24$$

Answer

Because $$2HI=12,\ HI=6$$

Answer

Because $$\frac{1}{2}H$$ , $$\frac{1}{2}\left(12\right)=6$$

Question 5

Find the length of the third side. Round to the nearest tenth if necessary.

Accepted Answer

3.46

Answer

3.5

Answer

4.5

Answer

4.47

Question 6

Find the length of side x in simplest radical form.

Accepted Answer

$$\sqrt[]{6}$$

Answer

$$\sqrt[]{3}$$

Answer

$$\sqrt[]{2}$$

Answer

3

Question 7

Express cos R as a fraction in simplest terms.

Accepted Answer

$$\cos R=\frac{21}{35}$$

Answer

$$\cos R=\frac{ ext{21}}{ ext{28}}$$

Answer

$$\cos R=\frac{28}{35}$$

Answer

$$\cos R=\frac{28}{21}$$

Question 8

Solve for x. Round to the nearest tenth, if necessary.

Accepted Answer

$$ an39\degree=\frac{x}{30},\ x=24.3$$

Answer

$$ an x=\frac{5.7}{39},\ x=8.3$$

Answer

$$ an39\degree=\frac{30}{x},\ x=37.0$$

Question 9

Solve for x. Round to the nearest tenth, if necessary.

Accepted Answer

$$\sin x=\frac{5}{8.8}$$ $$x=\sin^{-1}\left(\frac{5}{8.8}\right)$$ $$x=34.6\degree$$

Answer

$$\sin x=\frac{8.8}{5}$$ $$x=\sin^{-1}\left(\frac{8.8}{5}\right)$$ $$x=0.5\degree$$

Answer

$$\cos x=\frac{5}{8.8}$$ $$x=\cos^{-1}\left(\frac{5}{8.8}\right)$$

$$x=1.0\degree$$

Answer

$$\cos x=\frac{8.8}{5}$$ $$x=\cos^{-1}\left(\frac{8.8}{5}\right)$$

$$x=55.4\degree$$

Semester Review 2

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics