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Chapter 6: Q. 23. (page 365)
In Problems 23–28, convert each angle to a decimal in degrees. Round your answer to two decimal places.
The decimal degrees of the given value is.
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Use a calculator to find the approximate value of each expression rounded to two decimal places:
In Problems convert each angle in radians to degrees.
Approximating the Circumference of Earth Eratosthenes of Cyrene (276–195 bc) was a Greek scholar who lived and worked in Cyrene and Alexandria. One day while visiting in
Syene he noticed that the Sun’s rays shone directly down a well. On this date 1 year later, in Alexandria, which is 500 miles due north of Syene he measured the angle of the Sun to be about 6.2 degrees. See the figure. Use this information to approximate the radius and circumference of Earth.
Convert angle in radian to degree-
Convert each angle in degrees to radians. Express your answer as a multiple of .
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