23 A sector of a circle has an angle of 60°. The are a of the sector is 50 m2.Calculate, to 3 significant figures,(a)the radius, in m, of the sector,m(3)(b) the perimeter, in m, of the sector.---m(3) 相关知识点: 试题来源:...
Learn about the formulas associated with the sector of a circle. Discover the definition of a sector and how to use both the arc length and sector area formulas. Updated: 11/21/2023 Table of Contents What is a Sector of a Circle? Sector of a Circle Area Formula Sector of a Circle ...
The sector of a circle shown at left has center C. The total area of the sector is 500. In addition, (arc \ ABD) has length 40. What is the length, l, of line segment (AC)? ( ) A. 12.5 B. 16 C. 20 D. 25 相关知识点: 试题来源: 解析 D 反馈 收藏 ...
If a sector of a circle has an area of π units squared and the measure of its central angle (in degrees) is an integer, then the radius of the circle must be: ( ) A. π B. π^2 C. 6 D. 10 E. 36 相关知识点: 试题来源: 解析 C π=((360))π r^21=(360)r^2360=nr^2...
百度试题 结果1 题目A sector of a circle of radius 5 cm has an angle of at its centre. Calculate the exact value of a The area of the sector,b The arc length of the sector. 相关知识点: 试题来源: 解析 a b 反馈 收藏
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] ...
The sector of a circle is defined as the portion of a circle that is enclosed between its two radii and the arc adjoining them. It is considered as a portion of a circle with two radii and an arc. A circle is divided into two sectors, the minor sector and the major sector where the...
In the diagram, OA B is a sector of a circle with centre O and radius 12 cm.The lines AX and BX are tangents to the circle at A and B respectively. Angle AOB1=3开 radians.A Xx rad CB12cm Find the exact length of AX, giving your answer in terms of √3. 相关知识点: 试题...
The diagram shows the sector of a circle drawn on an Argand diagram. The centre of the circle, X, represents the complex number -1-2 and the (AB) is the locus of points z∈ that satisfy the equation ( (z-3+1)(z-b))=θ , where b∈ , θ∈ .Write down the complex numbe rep...
【题目】T he diagram shows the sector of a circle drawn on an Argand diagram. T he centre of thecircle, x, represents the complex number -1-2iand the AB is the locus of points zc that satisy theequaionr(-+1)=, wher beC,θ∈R.Write down the complex numbe represented bythe ...