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- A portion of the circumference (also known as an arc) of the circle and 2 radii of the circle meet at both endpoints of the arc formed a sector.
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A sector of a circle is a pie-shaped part of a circle made of the arc along with its two radii. A portion of the circumference (also known as an arc) of the circle and 2 radii of the circle meet at both endpoints of the arc formed a sector. The shape of a sector of a circle looks like a pizza slice or a pie.
A "pie-slice" part of a circle - the area between two radiuses and the connecting arc of a circle. See: Segment. Circle Sector and Segment. Illustrated definition of Sector: A pie-slice part of a circle - the area between two radiuses and the connecting arc...
This is the reasoning: A circle has an angle of 2 π and an Area of: πr2. A Sector has an angle of θ instead of 2 π so its Area is : θ 2π × πr2. Which can be simplified to: θ 2 × r2. Area of Sector = θ 2 × r 2 (when θ is in radians) Area of Sector = θ × π 360 × r 2 (when θ is in degrees)
A sector is a fraction of circle defined by two radii. We can find its area by finding the area of the whole circle, then by using the central angle measure (in degrees or radians) to find the fraction of the total area that's inside the sector.
As you can see from the figure above, a sector is a pie-shaped part of a circle. It has two straight sides (the two radius lines), the curved edge defined by the arc, and touches the center of the circle. Properties. Area. The area of a sector can be found if you know the radius and the central angle or arc length.
A sector of a circle is a portion or part of a circle that is composed of an arc and its two radii. You can compare the sector of a circle to the shape of a pizza slice. A sector is formed when two radii of the circle meet at both ends of the arc. An arc is simply a portion of the circumference of the circle. Sector of a Circle Definition.
00:00. A sector of a circle is a section of a circle that has the form of a pie and is created by combining the arc of a circle with two of its radii. A sector is formed when a segment of the circumference of a circle, also referred to as an arc, and two of the circle’s radii meet at both endpoints of the arc.
