A can do th of a work in 4 days and B can do th of the same work in 5 days. In how many days they can finish the work, if they work together?
The lengths of one side of a rhombus and one of the two diagonals are 6 cm each. Find the area of the rhombus (in ).
The area of a rhombus is and the length of one of its diagonals is 8 m. The length of each side of the rhombus will be: