📱 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

  • google app store apple app store
  • ✖

      Question

      Steel is used to make a hemispherical bowl that is 0.4

      cm thick. The bowl's inner radius is 7 cm. Find the bowl's outside curved surface.
      A 344.20 Correct Answer Incorrect Answer
      B 172.15 Correct Answer Incorrect Answer
      C 120.85 Correct Answer Incorrect Answer
      D 324.20 Correct Answer Incorrect Answer

      Solution

      Thickness =R-r 0.4cm =R-7 R=7.4cm. The curved surface of the hemispherical bowl =2 πR2 =2×22/7×7.4×7.4 =344.20cm2

      Practice Next
      ask-question