Contact us
Choose a category below so we can get back to you as quickly as possible.
圓柱的體積:底面積乘高 表面積:側面積+表面積乘2 圓錐的體積:底面積乘高乘三分之一 表面積:=圓錐的側面積+底面圓的面積
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.