Contact us
Choose a category below so we can get back to you as quickly as possible.
已知矩形ABCD AB=2AD,AE=AB且E在CD上在∟⊿ADE中,∴∠AED=30°∠DAE=60° 則∠EAB=30°在等腰⊿ZBE中∠ABE=1/2(180°-30°)=75°∠CBE=90°-75°=25° 第二問問題不全面,沒法回答
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.