the height and the slant height of a cone are 21 cm and 28 cm respectively. Find the volume of the cone.
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Answered by
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Height (h)= 21 cm
Slant height (l) = 28 cm
Radius =√h²+l²=√21²+28²=35 cm
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Volume of a cone =1/3πr²h=1/3×22/7×35×35×21=26950 cm³.
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Hope this helps you...
Slant height (l) = 28 cm
Radius =√h²+l²=√21²+28²=35 cm
=======================
Volume of a cone =1/3πr²h=1/3×22/7×35×35×21=26950 cm³.
=======================
Hope this helps you...
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Answered by
13
height , h = 21 cm
slant height , l = 28 cm
radius = r
l ² = h² + r²
r² = l ² - h²
= 28 ² - 21 ²
r² = 343
r = √ 343
r = 18.52 (approx.)
Volume of a cone = 1/3πr²h
= 1/3 × 22 / 7 × 18.52 × 18.52 ×21
= 7545.7888 cm³
PLease mark brainliest ..
slant height , l = 28 cm
radius = r
l ² = h² + r²
r² = l ² - h²
= 28 ² - 21 ²
r² = 343
r = √ 343
r = 18.52 (approx.)
Volume of a cone = 1/3πr²h
= 1/3 × 22 / 7 × 18.52 × 18.52 ×21
= 7545.7888 cm³
PLease mark brainliest ..
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