No 24,26, dan 27dengan penjelasannya

No 24,26, dan 27dengan penjelasannya

24.

$luas = (13 times 2) + ((13 - 4.5 - 4.5) times 6) + (13 times 2) \ = 26 + (4 times 6) + 26 \ = 26 + 24 + 26 \ = 76cm {}^{2}$

$frac{16cm}{144km} = frac{x}{360km} \ x = frac{16 times 360}{144} \ x = 40cm$

27.

$frac{5}{ frac{1}{8} } = frac{x}{1} \ x = frac{5 times 1}{ frac{1}{8} } \ x = 5 times 1 times 8 \ x = 40 : gelas$