a complex answer

来源: 皋诚 于 2026-05-01 05:47:40 [] [旧帖] [给我悄悄话] 阅读数 : (234 bytes)
回答: h1，h2是什么？第五行开始不懂 由 贫论贫论 于 2026-05-01 04:56:06

h1 and h2 are height for both ABF and OEF

SABF=6/7x(1/2)x84x(1/2)=18, the first ½ is for the (h1+h2)=1/2 of BC, the second one is for the half area of the ABCD, quite complex, other solutions are much better.

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