The oldest school books extant are I ;lay tablets found in ancient buildings ! n Ur of the Chaldees. They were j ‘ exercise books ” for the children 4000 years ago. |
To ascertain the cubic contents of a cone multiply the slant height by the circumference at the base, divide the result by two and to the result add the l area of the base.
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Bibliographic details
Star (Christchurch), Volume XLIV, Issue 193, 15 August 1931, Page 26
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63Untitled Star (Christchurch), Volume XLIV, Issue 193, 15 August 1931, Page 26
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