The angle of the sector is 0 radians and the radius of the circle is rcm.(a) Find an expression for 0 in terms of r.田The perimeter of the sector is 24.48cm.(b) Showthatθ=(24.48)/r-2田(c) Find the possible values of r.[3] ...
11 The diagram shows a sector o f a circle o f centre O. The angle subtended at the centre o f the circle is 45° and the are a o f the sector ABO is 10 cm2.B45°O f à(a) Convert 45° to radians, leaving your answer in terms o f π.Answer ... [1]..(b)Find ...
Question: The area of a sector of a circle of radius {eq}r {/eq} and angle {eq}30^\circ {/eq} is {eq}\dfrac{1}{2}r^2(30) = 15r^2 {/eq}. The Area of a Sector of a Circle In geometry, we learn that a portion or a slice of a circle is ...
Find the central angle of a circle with an area of {eq}74400 {/eq} sq. units and a radius of {eq}75 {/eq}. Let {eq}\pi = 3.14 {/eq}. Area of a Circular Sector: A sector is very similar to a slice of pie or pizza where the vertex is a...
angle of inclination 倾斜角 angle of intersection 相交角;交角 angle of projection 投射角 angle of rotation 旋转角 angle of the sector 扇形角 angle sum of a triangle 三角形内角和 angles at a point 同顶角 angular displacement 角移位 angular momentum 角动量 ...
area is 75 ° and the corresponding area is 7.5 π. What is the area of the whole circle?
The perimeter of a sector of a circle, of area 36π sq.cm., is 28 cm. What is the area of the sector? Solution: Area of circle = πr2= 36π sq.cm ∴ r = 6 cm Now, the perimeter of sector = 2r + S But, the perimeter is given to be 28 cm. ...
A central angle is an angle whose vertex is present at the center of a circle formed by the two radii as the sides of the angle. How do you find the central angle of a circle? The measure of a central angle is equal to the measure of the intercepted arc. You can also find the ...
Circle A has a radius of 24 cm and the measure of angle BAC in the circle is {eq}60^o. {/eq} What is the area of the sector BAC of the circle? The Area of a Sector of a Circle: A sector of a circle can be defin...
This is the simplest method to find the area of the segment of the circle without the usage of the angle made by the chord and thus the area of sector could be found without the usage of angle made by chord. This is done by relating the area of segment to the area of sector....