MCQOPTIONS
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MCQOPTIONS
| 1. |
The area of a triangle ABC, whose coordinates are A(x1 , y1), B(x2 , y2), C(x3 , y3) is given by______. |
| A. | ½ [x1 (y2 - y3) + x2 (y3 - y1) + x3 (y1 - y2)] |
| B. | 2 [x1 (y2 - y3) + x2 (y3 - y1) + x3 (y1 - y2)] |
| C. | y1 (x2 - x3) + y2 (x3 - x1) + y3 (x1 - x2) |
| D. | ½ [x1y1 + x2y2 + x3y3] |
| Answer» B. 2 [x1 (y2 - y3) + x2 (y3 - y1) + x3 (y1 - y2)] | |