The central angle of a sector of a circle is halved while the radius remains unchanged
MATHEMATICS · Single correct · CBSE · Mathematics · Areas Related to Circles · Areas Related to Circles
Problem
The central angle of a sector of a circle is halved while the radius remains unchanged. How are the sector's area and the length of its arc affected?
(a) Both area and arc length remain unchanged
(b) Arc length becomes half, but area becomes one-quarter
(c) Both area and arc length become half of their original values
(d) Arc length remains unchanged, but area becomes half of its original value