Quiz
Chapter 8: Right Triangles and Trigonometry
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Questions in this quiz (11)
1For this question, you ONLY use geometric mean and Pythagorean Theorem.

- ATrue
- BFalse
2Given the picture to the left, solve for "x." If needed, solve for the REDUCED RADICAL; if it is a whole number, this is not needed.

- A\(x=√32 u\)
- B\(x=4√2 u\)
- C\(x=4√3 u\)
- D\(x=√48 u\)
3\[m∠A = ?\] Round your answer to the nearest tenths place.
- A\[m∠A ≈ 58°\]
- B\[m∠A ≈ 59°\]
- C\[m∠A ≈ 58.67°\]
- D\[m∠A ≈ 0.90°\]
4What is ∠a known as in this picture?
- AAngle of Elevation
- BAngle of Depression
- CHorizontal Angle
- DVertical Angle
5What is ∠b known as in this picture?
- AHorizontal Angle
- BAngle of Depression
- CVertical Angle
- DAngle of Elevation
6Find x given the information in the picture. Use reduced radicals.
- A\[x ≈ 12.65 u\]
- B\[x = \frac{4√30}{√3} u\]
- C\[x = 4√3 u\]
- D\[x = 4√10 u\]
7Given that triangle ABC is AB = 13 inches and BC = 12 inches. How many inches is BC if triangle ABC is a right triangle?
- A7 inches
- B5 inches
- C12 inches
- D10 inches
8Find AC and round to the nearest tenths place.
- AAC ≈ 9
- BAC ≈ 8.9
- CAC ≈ 8.8
- DAC ≈ 12
9Olivia is in a lighthouse that is 85 feet tall on top of a cliff. She observes two sailboats due east of the light houses. The angles of depression to the two boats are 33° and 55°. If the cliff stands 110 feet above sea level, find the distance between the two boats. Round to the nearest hundreds place. It would probably help to draw a picture for this word problem.
- A126.63 feet
- B300.27 feet
- C173.64 feet
- D163.64 feet
10Find side c. Round your answer to the nearest hundreds place.
- A6.02 units
- B6.01 units
- C5.76 units
- D5.77 units
11Find the geometric mean of the following numbers: 9 and 7
- A3√63
- B3√7
- C63
- D63√3
Information
- Description
- Learn when to use trigonometry, similar triangles, Pythagorean Theorem, Law of Sines, and Law of Cosines.
- Author
- Selam H
- Language
- English
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- 1,426
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