Mathematics

Problem

A rectangular playground measures

30\,\text{m}

18\,\text{m}

. Along the longer side, a right-triangular extension is added whose base coincides with the

30\,\text{m}

side and whose height is

12\,\text{m}

. Calculate the total area of the playground. a)

540\,\text{m}^2

900\,\text{m}^2

720\,\text{m}^2

648\,\text{m}^2