In summary, the formula to find the area of a sector in a circle is A = (πr^2θ)/360, where θ is the central angle in degrees. If θ is in radians, the formula becomes A = (r^2θ)/2. The sector area is simply a fraction of the total area of the circle. ...
the area of a sector in a circle the formula for area of sector (in degrees) the formula for area of sector (in radians) how to calculate the central angle of a sector how to calculate the radius of a sector how to calculate the area of a segment ...
The segment of the circle formed by these two radii is referred to as the sector. What is the formula for the area of a sector of a circle? The formula for the area of a sector of a circle is: A=(n/360)*3.14r^2 In this formula, n represents the measure of the central ...
题目 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 ...
- The financial sector plays an important role in the economy.(金融部门在经济中起着重要的作用。) - A sector of a circle was drawn on the paper.(纸上画了一个扇形。) 2.用法分析 - “sector”更常用于表示一个较大的、具有特定功能或特征的经济、社会等方面的部门或区域。例如: - The private ...
The perimeter of the circle is given by the product of the diameter (2r) by the irrational number π, which is approximately 3.14. What is the perimeter of a certain sector of a circle? Consider a circular sector with radius r and central angle a measured in degrees. The perimeter of ...
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...
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:...
The meaning of SECTOR is a geometric figure bounded by two radii and the included arc of a circle. How to use sector in a sentence.
【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 ...