Question

(the dimensions are shown in the picture)

The question is what the total surface area of the prism in square centimeters?
Answer choices are

A.145.32 sq. cm.
B.100 sq. cm.
C.117.6 sq. cm.
D.90.64 sq. cm.

Answer 1

The right answer is A 145.32

Answer 2

Total surface area of the prism =145.32 Square centimeters

Explanation:

The given figure is a rectangular prism with the given dimensions of :

length(L)= 10.3 cm

Width(W)=2.2 cm

Height(H)=4 cm

Total surface area of the rectangular prism is:

`= 2(L*W+W*H+H*L)\\\\=2((10.3*2.2)+(2.2*4)+(4*10.3))\\\\=2(22.66+8.8+41.2)\\\\=2(72.66)\\\\=145.32cm^2\\\\`

Total surface area of the prism is 145.32 Square centimeters