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A straight line that touches the circle at a single point only. Sector. A section of the circle created by two radii. Major sector – A major sector has a central angle which is more than 180^o . Minor sector – A minor sector has a central angle which is less than 180^o . Semi circle. Half of a circle.
The circle is divided into 16 equal sectors, and the sectors are arranged as shown in fig. 3. The area of the circle will be equal to that of the parallelogram-shaped figure formed by the sectors cut out from the circle. Since the sectors have equal area, each sector will have an equal arc length.
Aug 22, 2024 · A circular sector is a wedge obtained by taking a portion of a disk with central angle theta<pi radians (180 degrees), illustrated above as the shaded region. A sector with central angle of pi radians would correspond to a filled semicircle. Let R be the radius of the circle, a the chord length, s the arc length, h the sagitta (height of the arced portion), and r the apothem (height of the ...
Jul 30, 2024 · Area of a Circle Calculator
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The boundary of the circle is known as the circumference: Radius: The line from the centre “O” of the circle to the circumference of the circle is called the radius and it is denoted by “R” or “r” Diameter: The line that passes through the centre of the circle and touches the two points on the circumference is called the diameter and
The figure shows a circle divided into 16 equal sectors of equal areas. If the sectors are cut out from the circle and placed as a parallelogram-shaped figure, the area of the circle will be equal to the area of this figure. The pink-colored sectors will cover half of the circle and thus have half the circumference.
