Textbook Question
In Exercises 29–34, convert each angle in degrees to radians. Round to two decimal places. 18°
516
views
1. Measuring Angles
Radians
2:27 minutesProblem 39
Textbook Question
In Exercises 35–40, convert each angle in radians to degrees. Round to two decimal places.
-4.8 radians
Verified step by step guidance1
Recall the conversion formula from radians to degrees: \(\text{degrees} = \text{radians} \times \frac{180}{\pi}\).
Substitute the given radian measure into the formula: \(\text{degrees} = -4.8 \times \frac{180}{\pi}\).
Calculate the fraction \(\frac{180}{\pi}\) to get the approximate degree equivalent of one radian.
Multiply the radian value by the calculated fraction to find the angle in degrees.
Round the resulting degree value to two decimal places as required.
Verified video answer for a similar problem:This video solution was recommended by our tutors as helpful for the problem above
Video duration:
2mKey Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Radian Measure
A radian is a unit of angular measure based on the radius of a circle. One radian is the angle created when the arc length equals the radius. It is a standard unit in trigonometry, where 2π radians equal 360 degrees.
Recommended video:
5:04
Converting between Degrees & Radians
Conversion Between Radians and Degrees
To convert radians to degrees, multiply the radian value by 180/π. This ratio comes from the fact that 2π radians equal 360 degrees, so 1 radian equals approximately 57.2958 degrees.
Recommended video:
5:04Converting between Degrees & Radians
Rounding Decimal Values
Rounding involves limiting a number to a specified number of decimal places for simplicity and clarity. In this case, the converted degree value should be rounded to two decimal places, ensuring precision without unnecessary detail.
Recommended video:
5:08Sine, Cosine, & Tangent of 30°, 45°, & 60°
Related Videos
Related Practice