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allochka39001 [22]
3 years ago
10

GEOMETRY URGENT HELP NEEDED

Mathematics
1 answer:
son4ous [18]3 years ago
4 0

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 =\frac{1}{2} (96+66)=81

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

So we get

t+z=180 \\ 81+z =180 \\ z = 180-81 =99 degree

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<u>To find the value of x:</u>

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