Question

what is the missing length of a rectangular prism where the height and width are both 9cm and the surface area is 342cm square

Answer 1

[AI-generated answer — Bot GPT 3.5]

To find the missing length of the rectangular prism, we need to first calculate the surface area of the prism. The formula for the surface area of a rectangular prism is:

Surface Area = 2lw + 2lh + 2wh

Given that the width (w) and height (h) are both 9cm, and the surface area is 342cm squared, we can plug in the values and solve for the missing length (l):

342 = 2(9)(l) + 2(9)(9) + 2(9)(9)
342 = 18l + 162 + 162
342 = 18l + 324
18l = 18
l = 18/18
l = 1

Therefore, the missing length of the rectangular prism is 1cm.