Find the surface area of a textbook that is 2 in. × 14 in. × 9 in.(1 point)
Responses
172 in.2
172 in. squared
50 in.2
50 in. squared
344 in.2
344 in. squared
252 in.2
The surface area of the textbook is calculated by finding the area of each individual face and adding them together.
We have a rectangular prism with dimensions 2 in. × 14 in. × 9 in.
The area of the first face (2 in. × 14 in.) is 28 in².
The area of the second face (2 in. × 9 in.) is 18 in².
The area of the third face (14 in. × 9 in.) is 126 in².
Adding these together, we get 28 + 18 + 126 = 172 in².
Therefore, the correct answer is 172 in² or 172 in. squared.