close
標題:
發問:
A ring of uniform width is made by cutting out the central part from a circle. The radius of the circle cut out is 5cm and the area of the ring is 374 cm2 . Let x cm be the width of the ring.. express the radius of the larger circle in terms of x find the width of the ring
最佳解答:
[(5+x)^2]π-[5^2]π=374 [(5+x)^2]π= 374 + 78.5 [(5+x)^2]π= 432.5 x = 7.0045
其他解答:
I am not sure if i have understood the question correctly, let see if me solution solves you problem: let the large radius be x, then (x^2)*3.14 - (5^2)*3.14 = 374 x = 12.005cm (the " * " means "times")6524A8F25B63629D
- 如何練出胸肌呢----
- 急 統計動差母函數
- MYSQL語法問題
- SP閃耀美姬肩帶一條只要488元-
- 急!!誰知道怎麼把自己的歌聲加伴奏燒成光碟-
- 懂日文的朋友可以幫一下嗎
- 478腳位775腳位939跟940腳位的問題
- 可以推薦一下做局部烤漆的嗎-(桃園市佳)
- 台北到雲科大省道怎麼走
- 急，需要日文地址跟人名羅馬拼音
此文章來自奇摩知識+如有不便請留言告知
F.2 MATHS發問:
A ring of uniform width is made by cutting out the central part from a circle. The radius of the circle cut out is 5cm and the area of the ring is 374 cm2 . Let x cm be the width of the ring.. express the radius of the larger circle in terms of x find the width of the ring
最佳解答:
[(5+x)^2]π-[5^2]π=374 [(5+x)^2]π= 374 + 78.5 [(5+x)^2]π= 432.5 x = 7.0045
其他解答:
I am not sure if i have understood the question correctly, let see if me solution solves you problem: let the large radius be x, then (x^2)*3.14 - (5^2)*3.14 = 374 x = 12.005cm (the " * " means "times")6524A8F25B63629D
文章標籤
全站熱搜
留言列表
