Answer:
The answer to your question is: 49.24 cm
Step-by-step explanation:
Data
short base = 6 cm
height = 10 cm
∠ = 63°
Process
tan Ф = opposite side / adjacent side
adjacent side = opposite side / tan Ф
adjacent side = 10 tan 63
adjacent side = 19.62 cm
longer base = 19.62 + 10 + 19.62
longer base = 49.24 cm