Answer:
The f number is used to control the size of the circular opening that allows light to reach your camera's sensor. The f number affects picture sharpness and plays a part in the exposure of the picture. f/8 refers to an f number of 8
Step-by-step explanation:
the nominator could be any number here
Triangle: 120
Quadrilateral: 90
Pentagon: 72
Octagon: 45
Decagon: 36
30-gon: 10
50-gon: 7.2
100-gon: 3.6
360/n = the measure on the exterior angle
n = the number of sides
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