16a) Mrs. Thapa wishes to grow flowers on the hanging bowls at her home. She brings 16 hemispherical bowls from the market having external diameter 21 cm and uniform thickness 0.5 cm each and fills the bowls with compost completely.
(i) If 1 cm³ of compost weighs 2.31 g, find the total weight of required compost.
(ii) If she covers outer curved surface of each bowl with polythene sheet, find the total amount of polythene.
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Bimal sir g Mrs. Thapa wishes to grow flowers on the hanging bowls at her home. She brings 16 hemispherical bowls from the market having external diameter 21 cm and uniform thickness 0.5 cm each and fills the bowls with compost completely.
(i) If 1 cm³ of compost weighs 2.31 g, find the total weight of required compost.
(ii) If she covers outer curved surface of each bowl with polythene sheet, find the total amount of polythene.
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