This good question needs a good answer which is......854.96
Answer:

Step-by-step explanation:

Answer:
The angle measure for angle c is 138 degrees
All angles in a triangle add up to 180 so 180 - 60 = 120 then 180 - 155 = 25 then 25+65 = 90 that is the remaining angle but finally 180 - 90 = 90 is the missing angle