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Find the incentre of the DeltaABC with v...

Find the incentre of the `DeltaABC` with vertices A(0,0,4), B(3,0,4), C(0,4,4).

A

(1,1,1)

B

(1,1,2)

C

(1,1,13)

D

(1,1,4)

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The correct Answer is:
D
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