Question

Circular region enclosed by the two radii and the corresponding arc is called a ___ of the circle.

• A. Sector
• B. Segment
• C. Arc
• D. All the above

Answer 1

The correct option is A Sector

Circular region enclosed by the two radii and the corresponding arc is called a sector of the circle.There are mainly 2 types of sectors, minor and major sector.
When degree measure of the angle at the centre is 360, area of the sector = $\pi r^2$.If the degree measure is $\theta$,then area of sector = $\frac{\pi r^2}{360}\times \theta$