Answer:
the angle between a side of a rectilinear figure and an adjacent side extended outward.
Step-by-step explanation:
Since you didn't give me a proper question I cannot give you a proper answer.
⣿⣿⣿⣿⡿⠟⠛⠋⠉⠉⠉⠉⠉⠛⠛⠻⠿⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿
⣿⣿⠟⠈⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠀⠈⠙⠾⣿⣾⣿⣾⣿⣾⣿⣾⣿
⠋⡁⠀⠀⠀⠀⠀⢀⠔⠁⠀⠀⢀⠠⠐⠈⠁⠀⠀⠁⠀⠈⠻⢾⣿⣾⣿⣾⣟⣿
⠊⠀⠀⠀⠀⢀⠔⠃⠀⠀⠠⠈⠁⠀⠀⠀⠀⠀⠀⠆⠀⠀⠄⠀⠙⣾⣷⣿⢿⣿
⠀⠀⠀⠀⡠⠉⠀⠀⠀⠀⠠⢰⢀⠀⠀⠀⠀⠀⠀⢰⠀⠀⠈⡀⠀⠈⢿⣟⣿⣿
⠀⠀⢀⡜⣐⠃⠀⠀⠀⣠⠁⡄⠰⠀⠀⠀⠀⠀⠀⠐⠀⠀⠀⠰⠀⠀⠈⢿⣿⣿
⠀⢠⠆⢠⡃⠀⠀⠀⣔⠆⡘⡇⢘⠀⠀⠀⠀⠀⠀⠈⠀⠀⠀⠀⠀⠀⠀⠀⣿⣿
⢀⡆⠀⡼⢣⠀⢀⠌⢸⢠⠇⡇⢘⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠘⣿
⣼⣃⠀⠁⢸⢀⠎⠀⢸⠎⠀⢸⢸⡄⠀⠀⠀⠀⠀⠂⢀⠀⠀⠀⠀⠀⠀⠀⠀⣿
⠃⡏⠟⣷⣤⠁⠀⠀⠸⠀⠀⡾⢀⢇⠀⠀⠀⠀⠀⠄⠸⠀⠀⠀⠀⠄⠀⠀⠀⣿
⠀⠀⣀⣿⣿⣿⢦⠀⠀⠀⠀⡧⠋⠘⡄⠀⠀⠀⠀⡇⢸⠀⠀⠠⡘⠀⠀⠀⢠⣿
⠈⠀⢿⢗⡻⠃⠀⠀⠀⠀⠀⠀⠀⠀⠱⡀⠀⠀⢰⠁⡇⠀⠀⢨⠃⡄⢀⠀⣸⣿
⠀⠀⠀⠈⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣀⣱⠀⠀⡎⠸⠁⠀⢀⠞⡸⠀⡜⢠⣿⣿
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢠⣺⣿⣧⢰⣧⡁⡄⠀⡞⠰⠁⡸⣠⣿⣿⣿
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠠⡿⠏⣿⠟⢁⠾⢛⣧⢼⠁⠀⠀⢰⣿⡿⣷⣿
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠈⠉⠡⠄⠀⡠⣚⡷⠊⠀⠀⠀⣿⡿⣿⡿⣿
⡀⠀⠀⠀⠀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡠⠊⠁⢸⠁⠀⠀⠀⢰⣿⣿⡿⣿⣿
⠱⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⡠⠊⠀⠀⠀⡞⠀⠀⠀⠀⢸⣿⣷⣿⣿⣿
⠀⠙⢦⣀⠀⠀⠀⠀⠀⢀⣀⣠⠖⠁⠀⠀⠀⠀⠀⡇⠀⠀⠀⠀⣸⣿⣾⡿⣷⣿
⠀⠀⠀⠀⠉⠉⣩⡞⠉⠁⠀⢸⡄⠀⠀⠀⠀⠀⢰⠇⠀⠀⠀⠀⣿⣿⣷⣿⣿⣿
⡆⠀⠀⣀⡠⠞⠁⣧⢤⣀⣀⣀⡇⠀⠀⠀⠀⠀⣸⠀⠀⠀⠀⠀⣿⣷⣿⣷⣿⣿
⣿⣷⠊⠁⠀⠀⡰⠁⠀⠀⠀⠀⣹⠶⢦⡀⠀⠀⡇⠀⠀⠀⠀⠀⢸⣿⣷⣿⣷⣿
⣿⢿⠀⠀⠀⡔⠁⠀⠀⠀⠀⠀⠀⠀⠀⠈⠳⡄⡇⠀⠀⠀⠀⠀⠈⣿⣾⣷⣿⣿
⠋⠈⠀⢀⠜⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡀⠀⠈⣧⠀⠀⠀⠀⠀⠀⠻⣿⣽⣾⣿
⢀⡄⡠⠊⠀⠀⠀⠀⠀⠀⠀⠀⠀⡀⠁⠀⠀⠀⣸⠀⠀⠀⠀⠀⠀⠀⣿⣿⣻⣿
⣿⠋⠀⠀⠀⠀⠀⠀⠀⠀⢰⠀⠐⠀⠀⠀⠀⣀⡿⠀⠀⠀⠀⠀⠀⠀⢹⣿⣻⣿
⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡼⠀⠀⠀⠀⠀⢀⣃⡇⠀⠲⡀⠀⠀⠀⠀⠈⣿⡿⣿
⣀⠤⠤⠤⡀⠀⠀⠀⠀⡴⠃⠀⠀⠀⠀⠀⢬⠞⡇⠀⠀⠇⠀⠀⠀⠀⠀⣿⣿⣿
⡁⢀⠀⠀⡇⠀⠀⠀⡼⠁⠀⠀⠀⠀⠀⣸⠁⠀⠇⠀⠀⡇⠀⠀⠀⠀⠀⣿⣿⣿
⠔⠃⠀⠀⡇⠀⠀⡼⠁⠀⠀⠀⠀⠀⢀⡇⠀⠀⡃⠀⠀⠙⢄⠀⠀⠀⠀⣿⣷⣿
⠒⠊⠀⠀⢸⠀⣸⠃⠀⠀⠀⠀⠀⠀⡞⠀⠀⠀⢅⠀⠀⡂⠸⡄⠀⠀⠀⣿⣟⣿
⠓⠀⠉⠀⢸⣰⠃⠀⠀⠀⠀⠀⠀⡜⡆⠀⠀⠀⢸⠀⠀⡇⢀⠇⠀⠀⠀⣿⣿⣿
⠉⠁⠀⢠⠞⠀⠀⠀⠀⠀⠀⠀⣰⠁⡇⠀⠀⠀⡇⠀⠀⡇⢸⠀⠀⠀⠀⣿⣷⣿
⡀⠀⢀⢿⣥⡤⠤⠤⠤⣀⣀⢠⠇⠀⢸⠀⠀⢰⠁⠀⢨⠀⢸⠀⠀⠀⠀⣿⣟⣿
