Contact us
Choose a category below so we can get back to you as quickly as possible.
3.14×12×34=37.68×34=28.26(平方釐米)答:陰影部分的面積是28.26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.