# GMAT Math : Geometry deductions

GMAT math, as part of its geometry questions, may often test you with figures or diagrams

What is the area of the below quadrilateral? 1. One of the sides measures 7 cm
2. One of the sides measures 10 cm

Readers are encouraged take some time to tackle this question.

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The GMAT is a very smart test which loves to trick candidates routinely.

In this chapter we want to highlight the importance of not inferring more than what is given in a GMAT geometry diagram.

Coming to the original question, from the figure it is tempting to establish that the quadrilateral is a rectangle and with both statements put together – we can calculate the area of the rectangle. Just like this : But what if the quadrilateral is actually like this? 🙂 ..or like this? 🙂 We cannot determine the area of such a quadrilateral with the information (only two sides) given. Beware of deducing too much information (relative lengths, angles etc) by how a diagram looks in the GMAT Math section

We go with option (E)