Mathematics

Problem

A triangle has two sides each of length

6\,\text{cm}

. The third side can be

6\,\text{cm}

7\,\text{cm}

8\,\text{cm}

9\,\text{cm}

. For which length of the third side is the area of the triangle the greatest? a)

9\,\text{cm}

8\,\text{cm}

7\,\text{cm}

6\,\text{cm}