# "Birds-Eye" View

Most geometry problems on the GMAT require straightforward calculations. However, some problems measure your insight into the basic rules of geometry. For this type of problem, you should step back and take a “birds-eye” view of the problem.Example

In the figure,

*O*is both the center of the circle with radius 2 and a vertex of the square*OPRS*. What is the length of diagonal*PS*?- 1/2
*4**2*

Solution

The diagonals of a square are equal.
Hence, line segment
Now,
Hence,

*OR*(not shown) is equal to*SP*.*OR*is a radius of the circle and therefore*OR*= 2.*SP*= 2 as well, and the answer is (D).