Hi draditya,

This question can be solved with a standard 'math' approach or it can be solved by TESTing THE ANSWERS.

We're given a number of facts to work with:

1) We start with a SQUARE piece of cloth.

2) We cut 4 feet off of one edge (and for a rectangle)

3) That rectangle is cut diagonally to form two sails (with area of 240 ft^2 each).

We're asked for the ORIGINAL PERIMETER of the cloth.

Let's TEST Answer B: 88 feet

If...

Perimeter = 88 feet

Dimensions = 22 by 22

Rectangle dimensions = 18 x 22

Triangle area = (1/2)(18)(22) = 198 ft^2 This is TOO SMALL.

Eliminate Answers A and B.

Let's TEST Answer D: 104 feet

If....

Perimeter = 104 feet

Dimensions = 26 by 26

Rectangle dimensions = 22 x 26

Triangle area = (1/2)(22)(26) = 286 ft^2 This is TOO BIG.

Eliminate Answers D and E.

There's only one answer left...

Final Answer:

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Rich

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