A triangle must have perimeter

MATHEMATICS · Single correct · CBSE · Mathematics · Heron's Formula · Heron's Formula

Problem

26\,\text{cm}

. Which of the following sets of side lengths will give the greatest area? (a)

8\,\text{cm},\;8\,\text{cm},\;10\,\text{cm}

(b)

9\,\text{cm},\;8\,\text{cm},\;9\,\text{cm}

(c)

10\,\text{cm},\;7\,\text{cm},\;9\,\text{cm}

(d)

6\,\text{cm},\;10\,\text{cm},\;10\,\text{cm}