Right-Mouthed Emoji

An Advanced Mathematics Lesson Starter Of The Day

I designed this strange right-mouthed emoji.
I created it from a yellow circle with a section cut out using two straight lines.
One line went through the centre of the circle marked with a red dot.
What was the radius of my original yellow circle? 

Right-mouthed Emoji

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Topics: Starter

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    Answer

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    More Mathematics Lesson Starters

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