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GEOMETRY URGENT HELP NEEDED

GEOMETRY URGENT HELP NEEDED-example-1
User TheHe
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1 Answer

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First we find the measurement of dark dot .

ANd for that we have to use the formula of the angle formed by the intersection of chord .

Let the dark dot be t.

So we have


t =(1)/(2) (96+66)=81

t and z are linear pair and sum of angles of linear pair =180 degree.

So we get


image

User Venetta
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