How Did Eratosthenes Measure the Size of the Earth

question 27

Multiple Choice

How did Eratosthenes measure the size of the Earth?

• A) by walking about one-quarter of the way around its circumference
• B) by measuring the times of sunrise in each of the four seasons
• C) by determining the parallax of the Moon and finding the size of its orbit
• D) by measuring the height of the Sun in the sky on the same day in two cities at different latitudes
• E) by asking Aristotle who knew everything

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Definitions:

WACC

stands for Weighted Average Cost of Capital, which is a calculation of a firm's capital cost from all sources, including equity and debt, weighted accordingly.

Capital Asset Pricing Model

A model used to determine the theoretical rate of return of an asset, considering risk and the time value of money.

Cost of Equity

The return a firm theoretically pays to its equity investors, i.e., shareholders, to compensate for the risk they undertook by investing their capital.

WACC

Weighted Average Cost of Capital, a calculation that reflects the cost of a company to finance its assets through a mix of equity and debt.