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Circles SAT question
Math · Geometry and Trigonometry · Medium · Answer it here, explanation included.
The number of radians in a 720-degree angle can be written as 
, where a is a constant. What is the value of a ?
Enter a number or fraction (like 3/17 or 0.176). Press Enter to check.
ExplanationShow
The correct answer is 4. There are 
radians in a 
angle. An angle measure of 
is 4 times greater than an angle measure of . Therefore, the number of radians in a angle is 
.
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