The prism shown is a rectangular prism
The Surface Area of a rectangular prism is given as:
SA = 2 (wl + hl + hw)
where h is the height, l is the length, and w is the width
In the rectangular prism shown:
l = 12.7 cm
h = 6.72 cm
w = 5.78 cm
Substitute these values into the formula for Surface Area
SA = 2 [ (12.7x5.78) + (12.7x6.72) + (6.72x5.78) ]
SA = 2 [ 73.406 + 85.344 + 38.8416)
SA = 2[197.5916]
SA = 395.1832
SA = 395. 2 cm²
