15\n \r@??? !"#\n$%&'( )\r*?+,3 .14 X 3 X 15 = 141.3 )= 142 \r)\r7./0 0@12P`p34\n56789:;<=>?@ABC\rC D ¼½¾;¿À!r tÁ r tÁ%\r¢ § ä ©\r 2)¼½¾;¿ÀÃÄ;ÅÆǹÈ!abɤC\rGH0,ABIJK\r?+,3 .14 X 34-2 2 = 7. 065 )\r*?+,9.42 X 2 = 18.84 )\rL?+,7. 065 X 2 + 18. 84 = 32. 97 )\rGHM,ABNJO\r?+,3 .14 X 4 + 2 2 = 12. 56 )\r*?+,12. 56 X 5 = 62.8 )\rL?+,12. 56 X 2 + 62. 8 = 87. 92 )\r8.0@P`pP3Q\r?RS25.12\n4 \nT@P3QURV\rWXY3ZC[\] ?^3Z20_`\n0a?^_`3Z \r?+,25.12 + 3 .14 + 2 = 4 )\r3 .14 X 4 2 = 50, 24 )\r*?+,25.12 X 4 = 100. 48 )\rL?+,50. 24 + 100. 48 = 150. 72 )\r3Zcd, 150. 72 X 20 = 3014.4 _`
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