Ask Question
23 February, 10:03

The base of a rectangluar prism is 5 meters by 3 meters. the height of the prism is 7 meters. the total surface area, except for one face, is 121 square meters. What are the dimesions of the missing face?

+4
Answers (1)
  1. 23 February, 10:26
    0
    Total SA = top + bottom + 2 (short side) + 2 (long side)

    top = bottom = 5*3 = 15

    short side = 7*3 = 21

    long side = 7*5 = 35

    SA = 2 (15) + 2 (21) + 2 (35) = 30+42+70 = 142

    So 142 - 121 = 21, so the missing face is a short side of 7*3
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “The base of a rectangluar prism is 5 meters by 3 meters. the height of the prism is 7 meters. the total surface area, except for one face, ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers