Question

Define sector of
circle
Draw a neat diagram
of sector
​

Answer 1

Answer:

A circular sector or circle sector, is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. In the diagram, θ is the central angle, r the radius of the circle, and L is the arc length of the minor sector.

Answer 2

Sector of circle :-

It is portion of the circle formed by a portion of the circumference and radii of the circle at the both endpoints of the arc .The shape of a sector of a circle is compared with slice of pizza or a pie .

Area of sector :-

Minor sector :-

$\frac{∅}{360}$×πr²

Major sector :-

Area of circle - area of minor sector

πr² - $\frac{∅}{360}$×πr²

Length of arc of sector :-

Minor sector :-

$\frac{2πr∅}{360}$

Major sector :-

2πr- $\frac{2πr∅}{360}$