Given below are two statements :
Statement I: The perimeter of a triangle is greater than the sum of its three medians.
Statement II: In any triangle ABC, if D is any point on BC, then AB + BC + CA > 2 AD.
In the light of the above statements, choose the correct answer from the options given below :
Statement I: The perimeter of a triangle is greater than the sum of its three medians.
This is true. In a triangle:
The medians connect a vertex to the midpoint of the opposite side, dividing the triangle into two smaller triangles of equal area.
The length of each median is always less than the sum of the two sides it connects (triangle inequality).
Therefore, the sum of the three medians is always less than the perimeter of the triangle.
Statement II: In any triangle ABC, if D is any point on BC, then AB + BC + CA > 2AD.
This is true as well. By the triangle inequality:
For the triangle formed by
AD, AB, and BD, we have
AB+BD>AD.
Similarly, for the triangle formed by
AD, AC, and CD, we have
AC+CD>AD.
Adding these inequalities gives
AB+AC+BD+CD>2AD.
Since
BD+CD=BC, we conclude
AB+AC+BC>2AD.
Statement I relies on the fact that medians are always shorter than the sum of the sides they span.
Statement II is a direct result of the triangle inequality applied to segments involving AD, proving its validity.
Therefore, the correct answer is option A.
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