Respuesta :

The surface area of rectangular prism is 360 square inches

Solution:

Given that rectangular prism of the length is 18 cm the width 6 cm and the height 3 cm

To find: Surface area of rectangular prism

The Surface area of rectangular prism is given by formula:

[tex]A=2(wl+hl+hw)[/tex]

Where,

"l" is the length and "h" is the height and "w" is the width of prism

From given,

l = 18 cm

w = 6 cm

h = 3 cm

Substituting the values in formula,

[tex]A = 2((6 \times 18) + (3 \times 18) + (3 \times 6))\\\\A = 2(108+54+18)\\\\A = 2 \times 180\\\\A = 360[/tex]

Thus surface area of rectangular prism is 360 square inches

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