A triangle has two sides each of length

MATHEMATICS · Single correct · GCSE · Mathematics · Geometry and Measures · Geometry and Measures

Problem

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}

(b)

8\,\text{cm}

(c)

7\,\text{cm}

(d)

6\,\text{cm}