Table of Contents
How do you find the area of a sector calculator?
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 the formula for sector of a circle?
The formula for the area of the sector of a circle is 𝜃/360o (𝜋r2) where r is the radius of the circle and 𝜃 is the angle of the sector.
What is the area of sector?
Area of Sector Formula The area of a sector can be calculated using the following formulas, Area of a Sector of Circle = (θ/360º) × πr2, where, θ is the sector angle subtended by the arc at the center, in degrees, and ‘r’ is the radius of the circle.
How do you find the area of a shaded part?
Calculate the area of both shapes. The area of a rectangle is determined by multiplying its length times its width. The area of a circle is Pi (i.e., 3.14) times the square of the radius. Find the area of the shaded region by subtracting the area of the small shape from the area of the larger shape.
What is the area of sector of a circle whose radius R and length of arc is L?
area = 2πlr.
What is the area of a sector of a circle of radius 5cm?
8.75 cm2
The area of a sector is given by the formula, lr2, where l is the length of an arc and r is the radius of the circle. Thus the area of the sector of length 3.5 cm formed by the circle of radius 5 cm is 8.75 cm2.
What is 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 a sector rule?
In order to find the area of a sector with the central angle in radians, we use the formula, Area of sector = (θ/2) × r2; where θ is the angle subtended at the center, given in radians, and ‘r’ is the radius of the circle.
What is a sector scale?
It is an instrument consisting of two rulers of equal length joined by a hinge. A number of scales are inscribed upon the instrument which facilitate various mathematical calculations.
How do you find the area of a sector with the radius and length of an arc?
We first find the sector angle by substituting the given values of the arc length and radius in the formula, Length of Arc = (θ/360) × 2πr. After calculating the angle, we can easily find the area of the sector with the formula, Area of a Sector of a Circle = (θ/360º) × πr2.
What is the formula for area of circle sector?
You can also find the area of a sector from its radius and its arc length. The formula for area, A A, of a circle with radius, r, and arc length, L L, is: A = (r × L) 2 A = (r × L) 2 Here is a three-tier birthday cake 6 6 inches tall with a diameter of 10 10 inches.
How to find area of sector circle?
Minor sector: When the angle enclosed between the two radii is less than 180°. The area enclosed is also smaller than a semi-circle.
How do you calculate the area of a circle segment?
find the area of the whole sector
How to find the area of sector?
– Solution: Given, the radius of the circle is 8cm. For a circle of a given area 50cm2, there are three sectors of area 25cm2, 45cm2, and 13cm2. – Solution: The area of the circle is 50cm2. – Solution: Since we divide a pizza into 6 equal pieces, each piece represents a sector with an angle equal to one-sixth of the total angle of pizza, that is 360