Question

Find the surface area of a textbook that is 2 in. × 14 in. × 9 in. (1 point) Responses 50 in.2 50 in. squared 172 in.2 172 in. squared 344 in.2 344 in. squared 252 in.2

Answer 1

are you sure

Answer 2

To find the surface area of the textbook, we need to find the area of each face and then sum them up.

The surface area of a rectangular prism can be found by using the formula:

Surface Area = 2lw + 2lh + 2wh

Given the dimensions of the textbook:

length = 2 in.
width = 14 in.
height = 9 in.

Now we can substitute these values into the formula:

Surface Area = 2(2)(14) + 2(2)(9) + 2(14)(9)
Surface Area = 28 + 36 + 252
Surface Area = 316

Therefore, the surface area of the textbook is 316 square inches. Answer: 316 in.2