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What is the perimeter of a certain right triangle?

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by Max@Math Revolution » Mon Jul 11, 2016 5:31 pm
What is the perimeter of a certain right triangle?
1) The hypotenuse's length is 5
2) The triangle's area is 4.5

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Source: — Data Sufficiency |
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by Max@Math Revolution » Thu Jul 14, 2016 12:05 am
From the original condition, we can see that the number of variables is 2. Hence, the number of equations we need is 2 as well. The correct answer is C

- Forget conventional ways of solving math questions. In DS, Variable approach is the easiest and quickest way to find the answer without actually solving the problem. Remember equal number of variables and independent equations ensures a solution.
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