Contact us
Choose a category below so we can get back to you as quickly as possible.
側面展開正好是一個正方形,即高=底面周長=6.28釐米,側面積=6.28X6.28=39.4384平方釐米 底邊半徑=6.28/2/3.14=1釐米,底面面積=3.14X(1)^2=3.14平方釐米 所以這個零件的表面積=側面積+2X底面面積=45.7184平方釐米
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.