Mathematics
Grade9
Easy

Question

Find the lateral area of the figure. Round your answer to the nearest hundredth.

  1. 341.63 space mm squared
  2. text  271.  end text 44 space mm squared
  3. 221.06 space mm squared
  4. 442.12 space mm squared

hintHint:

The Formula lateral surface area of the cone is left parenthesis pi r right parenthesis l  where l is the slant height and r is the radius of the circular base of the cone.

The correct answer is: 341.63 space mm squared


    Given, the radius of base of cone r = 8 mm and slant height of cone l = 13.6 mm
    U s e space t h e space l a t e r a l space a r e a space f o r m u l a comma space
L a t e r a l space a r e a space equals space pi r l
equals space 3.14 space x space 8 space x space 13.6 space
equals 341.63 space mm squared
    Therefore, the lateral surface area of the cone is 341.63 space mm squared.

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