Tolong ya ! (dengan Cara) ♥

16.) L= a x t
= 20 x 5
= 100 cm²

17.) K = 1/2 x Π x r
= 1/2 x 3,14 x 10
= 31,4/2
= 15,7 cm² ( kalau salh maaf)

18.) L1 = 1/2 x Π x r
= 1/2 x 22/7 x 7x 7
= 11 x 7
= 77 cm²
L2 = 1/2 x a x t
= 1/2 x 14 x 8
= 7 x 8 = 56cm²
LGabungan = L1 + L2
= 77 + 56 = 133 cm

19.) persegi panjang = p x l
= 24 x 6 = 144 cm²
persegi = ²√144 = 12 cm

20.)p = 10
l= 60
lebar????
lebar = 60/10 = 6 cm.....