Question

Tolongkaba adami fotonya

Answer 1

1.) 18 x 8 : 2 = 72 cm²
2.)
L1 = segitiga
L2 = trapesium
L3 = persegi panjang

L1 = 16 x 8 : 2 = 64 cm²

L2 =
(24 + 40) x 4 : 2
64 x 2 = 128 cm²

L3 = 32 x 4 = 128 cm²

64 + 128 + 128 = 64 + 256 = 320 cm²