If the area of the triangle formed by (0...

If the area of the triangle formed by `(0,0),(a,0) and ((1)/(2),a)`
is equal to `(1)/(2)` sq unit, then the values of a are

A

`pm2`

B

`pm3`

C

`pm1`

D

`pm4`

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The correct Answer is:

C

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