Engineering Board Exam Reviewer · Solutions to Oblique Triangles · medium
EE Board October 1997: The sides of a triangular lot are 130 m, 180 m and 190 m. The lot is to be divided by a line bisecting the longest side and drawn from the opposite vertex. Find the length of the line.
- 120 m
- 130 m
- 125 m
- 128 m
Answer
C. 125 m
Solution
Using the median-length formula for the median to the side of length 190: m= 12sqrt(2(130)2+2(180)2-1902)= 12sqrt(62500)=125 m.
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