Respuesta :

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Rectangle:
F&B: 24 (front is 24, back is 24)
T&B: 56
L&R: 21
Total: 202

Cylinder:
T&B: 50.27
Middle: 32pi or 100.53 (to 2 d.p.)
Total: 201.06 (to 2 d.p.)

Triangular Prism:
F&B: 24
B: 66
L: 88
R: 110
Total: 312

I think these are right (^^)