Contact us
Choose a category below so we can get back to you as quickly as possible.
14+8+3x+15-2/3x=40 x=9/7 三邊長度為:14,83/7≈12,99/7≈14. 三角形ABC是銳角三角形.
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.