What is the perimeter of a sector of a circle with radius 7 cm?

What is the perimeter of a sector of a circle with radius 7 cm?

The perimeter of a sector of a circle whose central angle is 90° and radius 7 cm is 25 cm.

How do you calculate the perimeter of a sector without the radius?

The formula for the perimeter of a sector is 2r[1 + (θ*π)/180]. The maximum possible value θ can reach is 360o. But at θ = 360, there will be no sector, it will be a complete circle.

What is the perimeter 7cm?

Now, we know that perimeter = sum of all the sides. Hence the perimeter of a square with side 7cm is 28cm.

What is the perimeter of a sector of a circle?

Perimeter of sector = 2 radius + arc length. Arc length is calculated using the relation : Arc length = l = (θ/360) × 2πr. Therefore, Perimeter of a Sector = 2 Radius + ((θ/360) × 2πr )

What is the perimeter of sector of circle?

What is area of sector of a circle?

Area of a Sector of Circle = (θ/360º) × πr2, where, θ is the angle subtended at the center, given in degrees, and ‘r’ is the radius of the circle. Area of a Sector of Circle = 1/2 × r2θ, where, θ is the angle subtended at the center, given in radians, and ‘r’ is the radius of the circle.

What is the perimeter of the sector of a circle?

The perimeter of the sector of a circle is the length of two radii along with the arc that makes the sector. In the following diagram, a sector is shown in yellow colour. The perimeter should be calculated by doubling the radius and then adding it to the length of the arc. A circular arc whose radius is 12 cm, makes an angle of 30° at the centre.

How do you find the area of a sector with radius 16?

Solution: If the length of the arc of a circle with radius 16 units is 5 units, the area of the sector corresponding to that arc is; A = (l r)/2 = ( 5 × 16)/2 = 40 square units. The perimeter of the sector of a circle is the length of two radii along with the arc that makes the sector.

How do you find the area of a circle with radius?

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

How do you find the sector of a circle?

Sector of a Circle Anytime you cut a slice out of a pumpkin pie, a round birthday cake, or a circular pizza, you are removing a sector. 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.