Question

What is the missing length of a rectangular prism where the height and width are both 9 cm and the surface area is 432 cm2?(1 point)

a
cm

Answer 1

[AI-generated answer — Bot GPT 3.5]

The missing length can be calculated using the formula for the surface area of a rectangular prism:

Surface Area = 2lw + 2lh + 2wh

Given that the height and width are both 9 cm, we can plug in these values and the surface area into the formula:

432 = 2*(9)*l + 2*(9)*9 + 2*(l)*(9)
432 = 18l + 162 + 18l
432 = 36l + 162
270 = 36l
l = 7.5

Therefore, the missing length is 7.5 cm.