In the figure, ∠DFE = 90°. ∠DFG is 35° more than ∠EFG.
- What line is perpendicular to DF?
- Find ∠DFG.
(a)
Line EF or FE is perpendicular to DF.
(b)
∠EFG = 1 u
∠DFG = 1 u + 35
1 u + 1 u + 35° = 90° (Right angle)
2 u = 90° - 35° = 55°
1 u = 55° ÷ 2 = 27.5°
∠DFG
= 27.5° + 35°
= 62.5°
Answer(s): (a) EF or FE; (b) 62.5°