Question

Horizontal and parallel lines M Q and U R are intersected by 2 diagonal lines N S and P T to form triangle E G F. Line N S intersects line M Q at point E and intersects line U R at point F. Line P T intersects line M Q at point E and intersects line U R at point G.
Which represents an exterior angle of triangle EGF?

∠MEG
∠NEG
∠PEQ
∠RFS

Answer 1

∠NEG

Reason: EN is the extension of side EF (E–F lies on line NS), and EG is a side of triangle EGF. The angle formed by the extension EN and side EG at E is an exterior angle of triangle EGF.