the slant height of the frustum of a cone is 5cm if the difference between the two radius is 4cm write the height of the frustum?
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R-r = 4 and l = 5 cm
l² = (R-h)² + h²
5² = 4² + h²
h² = 25 - 16
h² = 9
h= 3
Hence , height of the frustum is 3 cm
l² = (R-h)² + h²
5² = 4² + h²
h² = 25 - 16
h² = 9
h= 3
Hence , height of the frustum is 3 cm
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