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Let the base of a triangle lie along the...

Let the base of a triangle lie along the line x = a and be of length 2a. The area of this triangles is `a^(2)`, if the vertex lies on the line

A

`x = -a`

B

x = 0

C

`x=(a)/(2)`

D

x = 2a

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The correct Answer is:
B, D
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