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## Comment on

Tangent Line## Can we use the property of

## That's a perfectly valid

That's a perfectly valid approach. Nice work!

## Hi,

Can I say angle O (angle AOB) is central angle and angle D is a inscribed angle,

So as angle AOB = 50 degree then angle D = 1/2 of 50 degree = 25 degree

## That's a perfectly valid

That's a perfectly valid approach - nice work!

## Hi for the above question -

## Hi Vineet,

Hi Vineet,

You're right to say that ∠OBC = 90°

However, we aren't told that segment BD cuts ∠OBC into EQUAL angles.

So, we can't assume this to be the case.

Does that help?

Cheers,

Brent

## hi Brent

it definitely helped me, I have learnt that- we are not supposed to draw conclusions from the diagram, instead we need to put effort in solving the problem with given facts in the question.

Thanks and regards

Vineet