cerchio0 id_e40376f9_ddb0_47bc_a9b8_7830b7167f88 Begin id_be9a6921_bfa0_49c7_8bf8_a61b2c162bbe x id_e40376f9_ddb0_47bc_a9b8_7830b7167f88:s->id_be9a6921_bfa0_49c7_8bf8_a61b2c162bbe:n id_3e849832_6083_45de_b86f_0792e054097a r id_be9a6921_bfa0_49c7_8bf8_a61b2c162bbe:s->id_3e849832_6083_45de_b86f_0792e054097a:n id_c40252d2_1bee_4a19_bc2c_13f94c42cde6 A = pi*r2 id_3e849832_6083_45de_b86f_0792e054097a:s->id_c40252d2_1bee_4a19_bc2c_13f94c42cde6:n id_993d1c1c_62e7_4e8a_b2a0_76b847ad7ae0 A id_c40252d2_1bee_4a19_bc2c_13f94c42cde6:s->id_993d1c1c_62e7_4e8a_b2a0_76b847ad7ae0:n id_730fa2eb_bb31_4a52_8100_1ff864d70e98 End id_993d1c1c_62e7_4e8a_b2a0_76b847ad7ae0:s->id_730fa2eb_bb31_4a52_8100_1ff864d70e98:n