3in, 9in,10in
What is the surface area of the rectangular prism
To calculate the surface area of a rectangular prism, you need to find the area of each face and then add them all together.
The formula for 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:
Length (l) = 10in
Width (w) = 9in
Height (h) = 3in
Plugging in the values:
2(10)(9) + 2(10)(3) + 2(9)(3)
= 180 + 60 + 54
= 294 square inches
Therefore, the surface area of the rectangular prism is 294 square inches.