Im not 100 percent positive that this is correct but I think the answer is
184
Answer:
41
Step-by-step explanation: 180 is the full amount of angles in a triangle
101+38 is 139
180-139 is 41
Please check the picture.
If it can scan 72 photos in 8 minutes, it can scan 72/8 = 9 photos per minute.
So in 23 minutes, it can scan 9x23 = 207 photos
I can't see the figure entirely. To solve for the perimeter you need to know the height!
