Given the area of the three squares, find the perimeter of \\triangle\ABC.

GMAT Quantitative Reasoning Practice Test 1

Question : 56 of 100

Marks: +1, -0

Given the area of the three squares, find the perimeter of

\△\ABC

$12$
$12.5$
$19.5$
$20$
$25$

Validate

Solution:

The length of one side of a square is equal to the square root of the area of the square. Since the area of the squares is 9,16 , and 25 , the lengths of the sides of the squares are 3,4 , and 5 , respectively. The triangle is formed by the sides of the three squares; therefore, the perimeter, or distance around the triangle, is

3+4+5=12

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