Geometry
Question
How many radians is 180°?
Options
Answer & Analysis
Answer
Analysis
Question Analysis
This question focuses on using the degree - to - radian conversion formula, testing your ability to convert an angle measure from the degree system to the radian system.
Key Concept Explanation
The conversion formula from degrees to radians is . This is because a full - circle rotation of is equivalent to radians, so for any given angle in degrees, multiplying by gives the measure in radians.
Step-by-Step Solution
1. Given the angle .
2. Apply the conversion formula: Substitute into , we get .
3. Simplify the expression: radians.
Option Analysis
A. radians: Since , this corresponds to , not
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