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The mid-points of the sides AB, BC and C...

The mid-points of the sides AB, BC and CA of the equilateral `DeltaABC` are D, E and F respectively, AE intersects DF at O. If `angleOBD=15^@` , then `angleAOB=`

A

`45^@`

B

`105^@`

C

`120^@`

D

`135^@`

Text Solution

Verified by Experts

The correct Answer is:
d
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