Pomozecie to bardzo pilne z obliczeniami

a) Pp = 8 * 6 : 2 = 48 : 2 = 24 cm ² Pb = 8 * 7 + 6 * 7 + 10 * 7 = 56 + 42 + 70 = 168 cm² Pc = 24 + 24 + 168 = 216 cm² b) Pp = (6 + 12) * 4 : 2 = 18 * 4 : 2 = 36 cm² Pb = 5 * 13 + 6 * 13 + 5 * 13 + 12 * 13 = 65 + 78 + 65 + 156 = 364 cm² Pc = 36 + 36 + 364 = 436 cm²

Graniastosłup  :  [latex] P_{b} = (7*6) + (7*8) + (7*10) = 42 + 56 + 70 = 168 [j] ^{2} [/latex] [latex] P_{p} = frac{1}{2} *6*8 = 3 * 8 = 24 [j] ^{2} [/latex] [latex] P_{c} = 2 P_{p} + P_{b} = 2 * 24 + 168 = 216 [j] ^{2} [/latex] Graniastosłup II : [latex] P_{p} = frac{1}{2} (12+6) * 4 = frac{1}{2} *18 * 4 = 9*4 = 36 [j] ^{2} [latex]P_{b} = 2*13*5 + 13*6 + 12*13 = 130 + 78 + 156 = 364 [j] ^{2} [/latex] [latex] P_{c} = 2* 36 + 364 = 72 + 364 = 436 [j] ^{2} [/latex]