Engineering Board Exam Reviewer · Area of Polygons by Coordinates · medium
EE Board April 1994: Given three vertices of a triangle whose coordinates are A(1,1), B(3,-3) and (5,-3). Find the area of the triangle.
- 3
- 4
- 5
- 6
Answer
B. 4
Solution
Area = 1/2 |1(-3-(-3))+3(-3-1)+5(1-(-3)) | = 1/2(8) = 4.
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