The internal and external diameter of hollow hemispherical vessel are is 42cm and 45.5 cm respectively find its capacity and also its outer curved surface area.explain it
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Answered by
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inner diameter = 42 cm
inner radius ,r = 21 cm
outer diameter = 45.5 cm
outer radius ,R = 22.75 cm
Capacity = Volume
= 2 / 3 π (R³ - r³ )
= 2 / 3 × 22 / 7 × [ (22.75 )³ - (21 )³]
= 2/3 × 22 / 7 × [ 11774.5469 - 9261]
= 2 / 3 × 22 / 7 × 2513.5469
= 5266.47922 cm³
Outer C.S.A = 2πR²
= 2 × 22 / 7× 22.75 × 22.75
= 3253.25 cm²
inner radius ,r = 21 cm
outer diameter = 45.5 cm
outer radius ,R = 22.75 cm
Capacity = Volume
= 2 / 3 π (R³ - r³ )
= 2 / 3 × 22 / 7 × [ (22.75 )³ - (21 )³]
= 2/3 × 22 / 7 × [ 11774.5469 - 9261]
= 2 / 3 × 22 / 7 × 2513.5469
= 5266.47922 cm³
Outer C.S.A = 2πR²
= 2 × 22 / 7× 22.75 × 22.75
= 3253.25 cm²
bhumikaM:
but capacity is 19404
.ocsa-3253.25
Answered by
22
Hiya!!
Hope this helps~❤
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