Ask Question
19 January, 06:47

A large planetarium in the shape of a dome is being built. When it is complete, the base of the dome will have a circumference of 87 kilometers. What area of land was required for this planetarium?

+2
Answers (1)
  1. 19 January, 06:59
    0
    Area = pi * r^2, circumference = 2*pi*r, u need to get 'r' the radius:

    r = 87 km / 2 / pi = 13.846 km,

    Now the areas is:

    A = pi * 13.486^2 = 602.32188213127836 km^2 = 602.32 km^2

    Huge
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A large planetarium in the shape of a dome is being built. When it is complete, the base of the dome will have a circumference of 87 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers