Find the Angles a and ACB and the Length CD

question 204

Multiple Choice

Find the angles A and ACB and the length CD in the roof in the illustration below, where AC = BC. Round lengths of sides to three significant digits and angles to the nearest tenth of a degree.

• A) ∠A = 21.1°, ∠ACB = 132.2°, CD = 2.65 ft
• B) ∠A = 20.4°, ∠ACB = 139.2°, CD = 2.78 ft
• C) ∠A = 20.4°, ∠ACB = 139.2°, CD = 3.25 ft
• D) ∠A = 21.6°, ∠ACB = 127.2°, CD = 2.71 ft
• E) ∠A = 19.9°, ∠ACB = 144.2°, CD = 3.25 ft

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Definitions:

True Beta

A measure of the volatility, or systematic risk, of a security or a portfolio in comparison to the market as a whole, adjusted for anomalies.

Expected Rate

The anticipated rate of return on an investment, often based on historical data or forecast models.

Market Expected Rate

A rephrased term for Expected Market Rate, referring to the anticipated average rate of return as forecasted by investors based on market data.

Capital Asset Pricing Model

A model that describes the relationship between risk and expected return and that is used in the pricing of risky securities.