The perimeter of a right-angled triangle is $60 cm$ and hypotenuse is $26 cm$. Find the lengths of its other two sides.

The perimeter of a right-angled isosceles triangle is $\sqrt{2}\left(\sqrt{2}+1\right) m$. Find the length of the hypotenuse. Also, find the area of the triangle.

The two sides adjacent to the right-angle triangle are $9 cm$ and $12 cm$. Find the length of the perpendicular drawn from the vertex to the hypotenuse.

The perimeter of an equilateral triangle is same as its area. Find its length of side.

The perimeter of the floor of a room is $18 m$. If the height of the room be $3 m$, then its area the four walls is

To prepare the floor of a room the rate of expenditure was $Rs 8.50$ per $sq-m$ and if the total cost of flooring a room is $Rs 510$. The length of the room be $8 m$, then its breadth is

Note: The total cost of flooring room is not given in the book.

If the length of the diagonal of a square is double the diagonal of another square, then the ratio of their areas is