Ask Question
22 May, 06:45

An inverted cone of vertical height 12cm and Base radius 9cm contains water to a depth of 4 cm. Find the area of the interior surface of the cone not in contact with the water.

+3
Answers (1)
  1. 22 May, 07:05
    0
    Slant height = (9 2 + 12 2) 1/2 = 15 cm

    Slant height for 4 cm height = (4/12) (15) = 5 cm

    Area of the interior surface not containing water

    = π (9 x 15 - 3 x 5) = 120 π = 377.14 square cm
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “An inverted cone of vertical height 12cm and Base radius 9cm contains water to a depth of 4 cm. Find the area of the interior surface of ...” 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