newresults.netnewresults.net/wp-content/uploads/2017/05/lifeA_June2015.pdffùùT 1 x 1 x 1 cm3...
52
newresults.netnewresults.net/wp-content/uploads/2017/05/lifeA_June2015.pdffùùT 1 x 1 x 1 cm3 Èatà 4 x 4 cm2 a-at 0.5 cm a; ... A pyramid shaped toy is made by tightly placing cubic