What is a major sector of a circle?
A circular sector is the portion of a disk enclosed by two radii and an arc. A sector divides the circle into two regions, namely Major and Minor Sector. The smaller area is known as the Minor Sector, whereas the region having a greater area is known as Major Sector.
What is the area of major sector?
Q. 1. What is the area of the major sector? Ans: If the central angle of a sector(minor sector) is \(θ\) then, the formula of the major sector is \(=\frac{360^{\circ}-\theta}{360^{\circ}} \times \pi r^{2}\) where r is the radius of the circle.
What is major and minor sector class 10?
The circular region enclosed by two radii and the corresponding arc of a circle is called the sector of a circle. Here OAPB is called minor sector and OAQB is called the major sector.
What is sector of a circle with example?
To recall, a sector is a portion of a circle enclosed between its two radii and the arc adjoining them. For example, a pizza slice is an example of a sector representing a fraction of the pizza. There are two types of sectors, minor and major sector.
How many sectors are in a circle?
two sectors
A circle is divided into two sectors and the divided parts are known as minor sectors and major sectors. The large portion of the circle is the major sector whereas the smaller portion is the minor sector.
How do you draw a sector of a circle?
draw. sector: Draw sectors or rings in a circle
- start.degree. start degree for the sector.
- end.degree. end degree for the sector.
- rou1. Radius for one of the arc in the sector.
- rou2. Radius for the other arc in the sector.
- center. Center of the circle.
- clock.wise. The direction from start.degree to end.degree.
- col.
- border.
What is the perimeter of a sector of a circle?
A sector is a part of the circle. Perimeter of sector will be the distance around it. Thus, Perimeter of sector = 𝜃r + 2r. = r(𝜃 + 2)
How do you find the sector of a circle?
The formula for sector area is simple – multiply the central angle by the radius squared, and divide by 2: Sector Area = r² * α / 2.
What is a sector of a circle class 10?
A sector is created by the central angle formed with two radii and it includes the area inside the circle from that center point to the circle itself. The portion of the circles circumference bounded by the radii, the arc, is part of the sector. Common Sectors.
What is sector of a circle class 9?
A sector of a circle is defined as a part of a circle arc, where the end points of the arc are joined to the midpoint of the circle. It is also defined as the part of the circumference(arc) and radii of the circle at the end points of the arc.
How do you calculate the sector of a circle?
– The angle between the two radii is the central angle. Semicircles and quadrants are special sectors. – Arc length is the fractional part of the circumference. Sector area is the fractional part of the circular area. – Sector Proportions: – θ/360° = arc length/2πr = ar (sector)/πr² – Central Angle/360°= Arc Length/ Circumference = Ar (Sector) /Ar (Circle)
How do you find the sector area of a circle?
In the formula,r = the length of the radius,and θ “Theta” = the degrees in the central angle of the sector.
How to find the area of a sector of a circle?
Area of sector of Circle calculator uses area_of_sector = (Radius*Arc Length)/2 to calculate the Area of Sector, Area of sector of circle is the area of the portion of a circle that is enclosed between its two radii and the arc adjoining them. Area of Sector is denoted by Asec symbol.
What is a minor sector of a circle?
A smaller part occupied by two radii is called the minor sector. A minor sector has central angle which is less than 180°. A part occupied by two radii with central angle 90° is called quadrant. In other words we can define quadrant as one fourth of the circle.