Area of the figure = Area of rect + area of the semicircle
\(=L \times h + \frac{1}{2}\pi r^2\)
5 \(\times 15 + \frac{1}{2} \times \frac{22}{7} \times \left(\frac{5}{2}\right)^2\)
=75+\(\frac{(22\times 25)}{2\times7}\)
=75 + 9\(\frac{23}{28}\)
=84.8cm