Ask questions and get helpful answers.

Matthew is constructing a rectangular prism with a volume of 729 cubic inches. The prism will have the least possible surface area.

a) describe the prism and what will be its dimensions
b) what will be its surface area

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
4 answers
  1. a cube has minimum area
    729 = 9^3

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    👤
    oobleck
  2. delete the one on top of this one
    V = s^3
    729 = s^3
    s = 9 inches (A 9” x 9” x 9” cube)
    SA = 6s^2
    = 6(9)^2
    = 486 square inches
    is my answer correct?

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  3. is my answer correct?

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  4. yes

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    👤
    oobleck

Answer this Question

Related Questions

Still need help?

You can ask a new question or browse existing questions.