A hall floor consists of a rectangle long and wide

MATHEMATICS · Subjective · CBSE · Mathematics · Area · Area

Problem

A hall floor consists of a rectangle

20\,\text{m}

long and

12\,\text{m}

wide, with a semicircular stage (diameter

12\,\text{m}

) attached externally to one of the shorter sides. In the middle of the rectangular part there is a square opening of side

4\,\text{m}

that will not be tiled. Calculate, correct to one decimal place, the area of the floor that must be covered with tiles. Use

\pi = 3.14