Answer:
see explanation
Step-by-step explanation:
∠CBA = ∠BAG = 28° ( Alternate angles )
∠EAD = 90° - ∠BAG = 90° - 28° = 62° ( ∠EAG is right )
∠EDB is an external angle of ΔADE
• The external angle is equal to the sum of the 2 opposite interior angles
∠EDB = x + 4x = 5x
5x = 3x + 62 ( subtract 2x from both sides )
2x = 62 ( divide both sides by 2 )
x = 31, hence
3x = 3 × 31 = 93° and 4x = 4 × 31 = 124°
