Among angles i , k , g , a ,i and k are the exterior angles.
Given i°, k° ,g° ,a° are some angles and we have to find which angle is exterior angle.
The angle between a side of a polygon and an extended side is known as exterior angle of polygon. The sum of exterior angles of a polygon is equal to 180 degrees. We have to identify exterior angles among i° ,k° ,g° ,a°.
The angle i is an exterior angle because it is formed on a line opposite to angle d.
Angle k is also an exterior angle because it is also formed on opposite side of an angle.
Angle g is not an exterior angle.
Angle a is not an exterior angle.
Hence i and k are exterior angles among i, g, k, a.
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