alleryA minor sector has an angle of 80 degrees at the centre. What is the angle of the major sector?
A100°
B180°
C280°
D260°
Answer & Solution
Correct answer: C. 280°
1. The minor and major sectors together make a full circle.
2. A full turn is 360°.
3. So the major sector angle is 360° − 80° = 280°.
_Source: NCERT Class 10 Mathematics, Chapter 11 Areas Related to Circles, 11.1_
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