A pythagorean triangle is a triangle with one angle equal to 900 and sides of integer length. Find the number of pythagorean triangles whose area is twice the perimeter?
Correct Answer : D
There is a rectangular field of length 60 m and width 20 m. A path of uniform width and area 516 sq m surrounds the field. Find the width of path
P, Q and S are moving on a circular stadium of circumference 2100 m. When P completes one round, Q is still 700 m behind. When S completes one round, Q is 300 m ahead of him. How far from the starting point three of them will meet for the first time?
The areas of the three adjacent faces of a rectangular box which meet in a point are known. The product of these areas is equal to