GMAT Quantitative Reasoning Practice Test 2

Question : 39 of 100

Marks: +1, -0

In a rectangular axis system, what is the distance between the following points:

A

(3,

2)

and

B(7,5)

Validate

Solution:

First, draw a rectangular axis system and mark the two points.
The easiest way to find the distance between them is to draw a triangle, where the line AB is the hypotenuse. You can see that the length of one side of the triangle is

5 − 2 = 3

and the other side is

7 − 3 = 4.

The length of the line AB is received with the help of the Pythagoras principle: = 5.

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