Editor
Editor
 Sep 18, 2022
0
The area of a sector of a circular region of radius r is
Difficulty: Hard
A: 
$2\pi r$
B: 
$\pi r^{2}$
C: 
$\frac{1}{2}\pi r^{2}$
D: 
$\frac{1}{2}r^{2}\theta$
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NETNUST Entry TestMathematicsTrigonometric Identities of Sum and Difference of Angles