Tolong Bantu Jawab ya Sama caranya. nomor 12,13, dan 14

12. K1 = 2 x p x l
= 2 x 7 cm x 4 cm
= 56 cm²
K2 = a + b + c
= 5 cm + 3 cm + 4 cm
= 12 cm
K1 + K2 = 56 cm² + 12 cm
= 68 cm²
13. L1 = p x l
= 5 cm x 4 cm
= 20 cm²
L2 = s²
= 4²
= 16 cm²
L1 + L2 = 20 cm² + 16 cm²
= 36 cm² (c.)
Maaf, sisanya lupa caranya