Nomor lima aja kasih tau caranya sama jawabannya

Luas = luas persegi - (luas 1/2 lingkaran + luas segitiga)
= s × s - [(1/2 × pi × r × r) + (1/2 × a × t)]
= 20 × 20 - [(1/2 × 3,14 × 10 × 10) + (1/2 × 20 × 6)]
= 400 - (157 + 60)
= 400 - 217
= 183 cm^2