\u77e5\u9053\u5706\u5f26\u957f\u600e\u4e48\u6c42\u534a\u5f84\uff1f

\u4ec5\u77e5\u9053\u5f26\u957f\uff0c\u65e0\u6cd5\u6c42\u5f26\u6240\u5728\u5706\u7684\u534a\u5f84\uff0c
\u7406\u89e3\uff1a\u4f5c\u5f26AB\u7684\u5782\u76f4\u5e73\u5206\u7ebfCD\uff0c
\u4ee5CD\u4e0a\u4efb\u610f\u4e00\u70b9O\u4f5c\u5706\u5fc3\uff0cOA\u4e3a\u534a\u5f84\u4f5c\u5706\uff0c
\u8fd9\u5706\u90fd\u7ecf\u8fc7A\u3001B\u4e24\u70b9\uff0c
\u7531O\u7684\u4efb\u610f\u6027\u77e5\uff0c\u534a\u5f84\u80fd\u786e\u5b9a\uff0c\u5373\u534a\u5f84\u4e0d\u80fd\u6c42\u3002

\u8bbe\u5706\u5f27\u534a\u5f84\u4e3aR\uff0c\u5f13\u9ad8\u4e3ah\uff0c\u5f26\u957f\u4e3aL
\u5219\uff1aR²-(R-h)²=(L/2)²
R=h/2+L²/(8h)
\u6309\u4f60\u8ffd\u95ee\u7684\u6570\u636e\uff1aL=45\uff0ch=2\u4ee3\u5165
R=2/2+45²/(8*2)=127.5625
\u5173\u4e8e\u5706\u5f27\u7684\u8ba1\u7b97\u516c\u5f0f\u5982\u4e0b \uff1a
\uff081\uff09\u5706\u5f27\u7684\u5f27\u957f\uff1a \uff0c(R=\u534a\u5f84\uff0cn=\u5706\u5f27\u7684\u89d2\u5ea6\u7684\u7edd\u5bf9\u503c\uff09
\uff082\uff09\u6247\u5f62\u7684\u9762\u79ef\uff1a \uff0c(L=\u5706\u5f27\u7684\u5f27\u957f\uff0cR=\u534a\u5f84)

\u6269\u5c55\u8d44\u6599\uff1a
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