In the diagram, two pairs of identical isosceles triangles are cut off of square ABCD, leaving rectangle PQRS. The total area cut off is 200\:m^2. The length of PR, in metres, is
Answer Choices
A. \sqrt{200}
B. 20
C. \sqrt{800}
D. 25
E. 15
In the diagram, two pairs of identical isosceles triangles are cut off of square ABCD, leaving rectangle PQRS. The total area cut off is 200\:m^2. The length of PR, in metres, is
Answer Choices
A. \sqrt{200}
B. 20
C. \sqrt{800}
D. 25
E. 15