BTGModeratorVI wrote: ↑Sat Mar 14, 2020 6:52 am
In the coordinate plane above, what is the area of rectangular region MNRS ?
(1) M has coordinates (2, 1).
(2) N has coordinates (2, 5).
Answer:
E
Source: Official Guide
IMPORTANT: For geometry Data Sufficiency questions, we are typically checking to see whether the statements "lock" a particular angle, length, or shape into having just one possible measurement.
This technique can save a lot of time.
Target question: What is the area of rectangular region MNRS?
Let's jump straight to . . .
Statements 1 and 2 combined
The COMBINED statements tell us that the rectangle's height = 4
Notice that neither statement locks in the location of points R and S. This means that the rectangle can have ANY width.
As such we cannot determine
the area of rectangular region MNRS
Answer: E
Cheers,
Brent
