bantu 32/33 atau semuanya

32. s = akar(t^2 + r^2)
s = akar(12^2 + 9^2)
s = akar(144 + 81)
s = akar(225)
s = 15 m
L(selimut) = phi × r × s
Ls = 3,14 × 9 × 15
Ls = 423,9 m^2
Biaya yang harus disediakan = 423,9 × 12.000 = Rp. 5.086.800,00 (A)

33. BC = akar(AC^2 - AB^2)
BC = akar(10^2 - 6^2)
BC = akar(100 - 36)
BC = akar(64)
BC = 8 cm (D)