很严格.从高着手可能简单点.1)同底三角形顶点在(0,1),(0,0),(1,0)OR(1,1)有最大的高.2)定长的底以顶点在(0,1),(0,0),(1,0)OR(1,1)等腰三角形最大,3)得等边三角形,得(3-squt3)/2.
很严格.从高着手可能简单点.1)同底三角形顶点在(0,1),(0,0),(1,0)OR(1,1)有最大的高.2)定长的底以顶点在(0,1),(0,0),(1,0)OR(1,1)等腰三角形最大,3)得等边三角形,得(3-squt3)/2.
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