alleryStart learning →The area of a sector of angle theta equals theta over 360 multiplied by:
AFour pi r
BPi r squared
CTwo pi r
DPi r cubed
Answer & Solution
Correct answer: B. Pi r squared
1. The sector is a fraction of the whole disc.
2. That fraction is theta over 360.
3. So multiply by pi r squared.
_Source: syllabus Mathematics Class X, Chapter 12, Areas Related to Circles._
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