Nomor 29,tentukan nomor a,b

Nomor 29,tentukan nomor a,b

${s}^{2} = {5}^{2} + {12}^{2} \ {s}^{2} = 25 + 144 \ {s}^{2} = 169 \ s = sqrt{169} \ s = 13 : cm$
$v = frac{1}{3} times pi times {r}^{2} times t \ v = frac{1}{3} times 3.14 times 5 times 5 times 12 \ v = 3.14 times100 \ v = 314 : : {cm}^{3}$