A hemispherical tank is made up of an iron -Maths 9th

A hemispherical tank is made up of an iron -Maths 9th
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Answer :

Inner radius of the hemispherical tank (r) = 1 m  Outer radius of the hemispherical tank (R) = 1 + 0.01 = 1.01 m  Volume of iron used to make the hemispherical tank = 2/3 πR3 - 2/3πr3 = 2/3π(R3 - r3)  = 2/3 x 22/7 [(1.01)3 - 13]  = 44/21(1.0303 - 1) = 44/21 x 0.0303 = 0.06349 m3
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Shahid has built a cubical water tank with lid for his house, -Maths 9th

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Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in fig. These pieces are arranged in a way that AB||HC || GD || FE. Also BC=CD=DE, and GF=6 cm... -Maths 9th

Description : Sohan wants to show gratitude towards his teacher by giving her a card made by him. He has three pieces of trapezium pasted one above the other as shown in fig. These pieces are arranged in a way that AB||HC || GD || FE. Also BC=CD=DE, and GF=6 cm... -Maths 9th

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