What is the surface area of the rectangular prism with a base of 10, a with of 9, and a hight of 3

The surface area of a rectangular prism is calculated by adding the areas of all six faces. The formula to find the surface area of a rectangular prism is 2lw + 2lh + 2wh, where l is the length, w is the width, and h is the height.

Given:
L = 10
W = 9
H = 3

Plugging in the values:
Surface Area = 2(10*9) + 2(10*3) + 2(9*3)
Surface Area = 2(90) + 2(30) + 2(27)
Surface Area = 180 + 60 + 54
Surface Area = 294

Therefore, the surface area of the rectangular prism with a base of 10, a width of 9, and a height of 3 is 294 square units.