Dik: V=2.816cm³ T=14cmDit:R=?(bangun ruang tabung)

Dik: V=2.816cm³ T=14cmDit:R=?(bangun ruang tabung)

Jawaban:

$v = pi {r}^{2} t \ 2816 = frac{22}{7} times r^{2} times 14 \ frac{2816}{14} = frac{22}{7} times r^{2} \ frac{2816 times 7}{14 times 22} = {r}^{2} \ \ 64 = r^{2} \ sqrt{64} = r \ r = 8cm$

V = π×r²×t

2816 = 3,14 × r × 14

r² = 2816 ÷ 43,96

r² = 64

r = √64

r = 8