tolong yaa, pake cara

26. L lingkaran = 1/2 × π × r² = 1/2 × 22/7 × 7 × 7 = 77 cm²
L persegi panjang = p × l = 20 × 14 = 280 cm²
L segitiga = 1/2 × a × t = 1/2 × 14 × 10 = 70 cm²
L total = 77 cm² + 280 cm² + 70 cm² = 427 cm² " C "

27. L permukaan = 6 × s² = 6 × 1.600 cm = 9.600 cm² " B "