The scale of an aerial photograph is 1 cm = 100 m . The photograph size is 20 cm X 20 cm. How many photographs are required to cover an area of 8 km ×12.5 km , if the longitudinal lap is 60 % and the side lap is 30 %?
A. 109
B. 119
C. 129
D. 139
Answer:B
The scale of an aerial photograph is 1 cm = 100 m . The photograph size is 20 cm X 20 cm. How many photographs are required to cover an area of 8 km ×12.5 km , if the longitudinal lap is 60 % and the side lap is 30 %?
A. 109 B. 119 C. 129 D. 139