Solve the Problem $18 ^ { \circ }$ Each Second $20 \mathrm {~cm}$

question 101

Multiple Choice

Solve the problem.
-A pendulum swings through an angle of $18 ^ { \circ }$ each second. If the pendulum is $20 \mathrm {~cm}$ in length and the complete swing from right to left lasts 2 seconds, what area is covered by each complete swing? Round to the nearest hundredth.

• A) \(62.83 \mathrm {~cm} ^ { 2 }\)
• B) \(6.28 \mathrm {~cm} ^ { 2 }\)
• C) \(251.33 \mathrm {~cm} ^ { 2 }\)
• D) \(125.66 \mathrm {~cm} ^ { 2 }\)

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Definitions:

Odd Number

An integer that cannot be divided evenly by two, exemplified by numbers like 1, 3, 5, etc.

Mirror

A reflective surface, typically glass coated with a metal amalgam, that reflects a clear image.

Classical View

A traditional perspective or theory in a specific field that has stood the test of time and forms the foundation for subsequent developments.

Triangle

A polygon with three edges and three vertices, representing the simplest form of a polygonal shape.