What is the least number of square tiles required to pave the floor of a room $15$ m $17$cm long and $9$m $2$cm broad?

The perimeter of a square is $48$ cm. The area of a rectangle is $4$ less than the area of the square. If the length of the rectangle is $14$ cm, then its perimeter is:

The area of a square field is $69696$ cm². Its diagonal will be equal to

The base of a triangle is $15$ cm and height is $12$ cm. The height of another triangle of double the area having the base $20$ cm is:

The area of triangle is $216 {\text{cm}}^2$ and its sides are in the ratio $3:4:5$. The perimeter of the triangle is