tolong bantu jawab nya besok dikumpulin

1.)
L1. Persegi
s×s
14×14 cm = 196 cm²
L2. 4 setengah lingkaran = 2 lingkaran
2×Π×r²
2× 22/7 ×7×7 = 308 cm²
L.Total = 196 + 308 = 504 cm²

2.)
L1.Layang-Layang
d1 × d2 : 2
(10) × (10+4) : 2 =
10×14 : 2 =
10×7 = 70 cm²
L2. Trapesium
jumlah sisi sejajar × t : 2
(6 +(10+6)) × 18 : 2 =
22 × 18 : 2 = 198 cm²
L.Total = 70+198 = 268 cm²

3.)
L1. Segitiga
1/2×a×t
1/2×23×12 =
23×6 = 138 cm²
L2. Persegi
s×s
23×23 = 529 cm²
L.Total = 138+529 = 667cm²