close

標題:

Problem about geometry (Circle)

發問:

Find the length of the arc on a circle of radius r intercepted by a central angle. r=12.9(in) θ=300(degree) And also find the area of the sector as well, if you're convenience to do so. Thank you la~~

最佳解答:

 

此文章來自奇摩知識+如有不便請留言告知

Problem about geometry (Circle) Find the length of the arc on a circle of radius r intercepted by a central angle. r=12.9(in) θ=300(degree) And also find the area of the sector as well, if you're convenience to do so. Thank you la~~ ===>> 圓周 = 2 pi r= 2 ( pi ) ( 12.9 in ) = 25.8(pi)in ===> Length of the arc = 圓周 x 300/360 = 25.8(pi) x 5/6 = 21.5(pi) in. ===>> area or circle = pi x r x r ===>> area of the sector = pi x r x r x 300/360 = 138.675(pi) square inches

其他解答:5C926699F268FE02

arrow
arrow
    文章標籤
    保問題 甄選問 事宜 科技大 房地
    全站熱搜
    創作者介紹
    創作者 gpjqem1 的頭像
    gpjqem1

    gpjqem1的部落格

    gpjqem1 發表在 痞客邦 留言(0) 人氣()

    E-mail轉寄