Contact us
Choose a category below so we can get back to you as quickly as possible.
∵∠A:∠B:∠C=1:2:3,∠A+∠B+∠C=180°,∴∠A=30°,∠B=60°,∠C=90°.設a=k,則c=2k,根據勾股定理,得b=3k.則a:b:c=1:3:2.故選C.
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.