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A triangular park is enclosed on two sid...

A triangular park is enclosed on two sides of a fence and on the third side by a straight river bank. The two sides having fence are of same length x. The maximum area enclosed by the park is

A

`sqrt((x^(3))/(8))`

B

`(1)/(2) x^(2)`

C

`pi x^(2)`

D

`(3)/(2) x^(2)`

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The correct Answer is:
B
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