A triangle with vertices A( -5, 4) , B(4, -2) and C(2, 4). Find its area.
Please answer in eng and give me full step.
F.3 math (coordinate geometry)
2008-08-20 7:18 pm
回答 (2)
2008-08-20 7:53 pm
✔ 最佳答案
The answer is as follows:圖片參考：http://i277.photobucket.com/albums/kk75/uncle_michael/080820_mat_1.jpg?t=1219204324
2008-08-20 7:30 pm
Area=1/2*(2-(-5))*(4-(-2))=1/2*7*6=21
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