Question

Please help with geometry

Answer 1

answer : 80

To find angle 1 , we apply outside angle theorem Lets name each point Measurement of arc EF=220 degrees

Measurement of arc GH = 60

Angle D = angle 1

Theorem says

angle
`D = (arc(EF)-arc(GH))/(2)` Now we plug in the values

angle 1 =
`(220-60)/(2)` angle 1 = 80

Measurement of angle 1 = 80 degrees