[機經] 數學jj#288
288. what is the area region of an isosceles (等腰三角形) triangle?
1) The perimeter is 50.
2) One side line is 15.
解答:E, S面積=根號(S(S-A)(S-B)(S-C))
問題:哪位大大可以幫我講解的詳細一點阿...不懂
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09/09 15:13, , 1F
09/09 15:13, 1F
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09/10 00:11, , 2F
09/10 00:11, 2F
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09/10 00:11, , 3F
09/10 00:11, 3F
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