Solution:First, find the area of the triangle using the semiperimeter s is given as follows: > The area of the triangle A given its 3 sides is: Now draw a line from each vertex of the triangle to the center of the circle. This divides the triangle into 3 smaller triangles whose altitudes are r and whose bases are 13, 14, and 15. The area of the large triangle 84, is the sum of the areas of the 3 smaller triangles. Therefore, |
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| Problem 1 | Problem 2 | Problem 3 | Problem 4 | Problem 5 |

| Problem 6 | Problem 7 | Problem 8 | Problem 9 | Problem 10 |