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The co-ordinate of vertices A, B and C o...

The co-ordinate of vertices A, B and C of `DeltaABC` are (1, -2), (-7, 6) and `((11)/(5),(2)/(5))` respectively. The measure of the interior angle A of the `DeltaABC`, is:

A

`(75^(@), 90^(@))`

B

`(60^(@), 75^(@))`

C

`(45^(@), 60^(@))`

D

`(120^(@), 150^(@))`

Text Solution

Verified by Experts

The correct Answer is:
B
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