Math, asked by hercules3, 1 year ago

calculate the angle with lettees O is the centre

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Answered by Priyajit

We know that Central angle is twice of radius angle. So The angle O is 2×40° = 80°
Please mark as Brainliest.

Priyajit: Why ? Haven't you understand mine ?

Answered by kajal191

i just name the triangle because it makes it easy for me

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hercules3: will u be my friend

hercules3: hiii

kajal191: their is a theorem that is if an arc sobtend angle at Centre and on the circle also then the angle at the centre is twice of the angle on the circle

kajal191: actually their is a theorem it is that when an arc subtend angle at

Priyajit: I mentioned that theorem

hercules3: ok thanks kajal i understand

kajal191: welcome

hercules3: will u be my friend

kajal191: ok

hercules3: tnx

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