Question

Tolong jawabannya pakai cara ya dicari luas dan lebar

Answer 1

1) L1 = p × l = 20 × 5 = 100 cm²
L2 = 5 × (10 - 5)
= 5 × 5 = 25 cm²
Lttl = 100 + 25 = 125 cm²
kel = 20 + 10 + 5 + (10-5) + (20-5) + 5
= 60 cm

2)L1 = 15 × 10 = 150 cm²
L2 = 2 × ½ × {(50 - 10)/2} × (15 + 15)
= 20 × 30 = 600cm²
Lttl = 150 + 600 = 750 cm²
kel = 15 + 10 + 15 + 42 + 50 + 42
= 174 cm

Answer 2

1.L=20×5=100cm²
L2=5×5=25cm²
L=L1+L2=100+25=25CM²