6. Exercise Problems III

There is a slide in a park. One of its side walls has been painted in some colour with a message \(“KEEPTHE PARK GREEN AND CLEAN”\) (see Fig.). If the sides of the wall are \(15 m\), \(11 m\) and \(6 m\), find the area painted in colour.

 

 

Required Area \(=\) $i\sqrt{i}$\(m^2\)