Engineering Board Exam Reviewer · Properties of Triangles · medium

Find the radius of the circumscribed circle of the triangle with sides 13, 14 and 15.

  1. 13/2
  2. 21/2
  3. 15/2
  4. 65/8

Answer

D. 65/8

Solution

R=abc/4A=13(14)(15)/4(84)=2730/336=65/8=8.125.

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