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Last updated at Dec. 24, 2018 by Teachoo
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Ex 9.2, 4 Obtain the volume of rectangular boxes with the following length, breadth and height respectively. (i) 5๐, 3๐^2, 7๐^4 Length = 5๐ , Breadth = ใ3๐ใ^2, Height = ใ7๐ใ^4 Volume = Length ร Breadth ร Height = 5๐ ร ใ3๐ใ^2 ร ใ7๐ใ^4 = 5 ร ๐ ร 3 ร ๐^2 ร 7 ร ๐^4 = (5ร3ร7) ร (๐ร๐^2ร๐^4 ) = 105 ร ๐^(1 + 2 + 4) = ๐๐๐๐^๐ Ex 9.2, 4 Obtain the volume of rectangular boxes with the following length, breadth and height respectively. (ii) 2๐, 4๐, 8๐ Length = 2๐, Breadth = 4๐, Height = 8๐ Volume = Length ร Breadth ร Height = 2๐ ร 4๐ ร 8๐ = 2 ร ๐ ร 4 ร ๐ ร 8 ร ๐ = (2ร4ร8) ร (๐ร๐ร๐) = 64 ร ๐๐๐ = ๐๐๐๐๐ Ex 9.2, 4 Obtain the volume of rectangular boxes with the following length, breadth and height respectively. (iii) ๐ฅ๐ฆ, 2๐ฅ^2 ๐ฆ, 2๐ฅ๐ฆ^2 Length = ๐ฅ๐ฆ, Breadth = 2๐ฅ^2 ๐ฆ, Height = 2๐ฅ๐ฆ^2 Volume = Length ร Breadth ร Height = ๐ฅ๐ฆ ร 2๐ฅ^2 ๐ฆ ร 2๐ฅ๐ฆ^2 = ๐ฅ ร ๐ฆ ร 2 ร ๐ฅ^2 ร ๐ฆ ร 2 ร ๐ฅ ร ๐ฆ^2 = (2ร2) ร (๐ฅร๐ฅ^2ร๐ฅ) ร (๐ฆร๐ฆร๐ฆ^2 ) = 4 ร ๐ฅ^4 ร ๐ฆ^4 = ๐๐^๐ ๐^๐ Ex 9.2, 4 Obtain the volume of rectangular boxes with the following length, breadth and height respectively. (iv) ๐, 2๐, 3๐ Length = ๐, Breadth = 2๐, Height = 3๐ Volume = Length ร Breadth ร Height = ๐ ร 2๐ ร 3๐ = ๐ ร 2 ร ๐ ร 3 ร ๐ = (2ร3) ร (๐ร๐ร๐) = 6 ร ๐๐๐ = ๐๐๐๐
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