tolong bantu ya nomor 5 makasih

luas persegi = 20 × 20
= 400
luas lingkaran = π r kuadrat
= 3,14 × 20 × 20
= 3,14 × 400 = 1.256
= 1/2 × 1.256 = 628
luas segitiga= 1/2 × alas × tinggi
= 1/2 × 20×6
= 10 × 6 = 60