tolong dibantu 24,25,26

[tex]25. \: \frac{3}{4} \times \pi \times 7 \times 7 = 115 \frac{1}{2} \: \: {b}[/tex]
24. L = L1 + L2
(18 x 12) + (4 x 10)
216 + 40 = 256 (c)

maaf jika ada kesalahan :)