Question

9. In Figure 9, AB||DH and BC||FG. If ABC = 60°, find GFH.
b. c and d.​

Answer 1

Answer:

GFH=120°

Step-by-step explanation:

ABC=DCE=60°( corresponding angle)

FCE+DCE=180°

FCE=120°

FCE=GFH ( corresponding angle)

GFH=120°

Answer 2

Answer:

Given: ABC=60°

AB||Dh and BC|| FgG

To Find: GFH

Proof: ABC = DFG. (Alternate angles)

DFG =60°

DFG - GFH = 180°. ( Liner Pair)

60° - GFH =180°

GFH = 180° - 60°

Therefore GFH =120°