Helpp meeee plissss

Helpp meeee plissss

rumus volume kerucut

$frac{1}{3} times pi times r {}^{2} times t$

diketahui

volume = 462

tinggi = 9

ditanyakan r=?

Jawaban

$462 = frac{1}{3} times frac{22}{7} times r {}^{2} times 9 \ \ 462 = frac{22}{21} times r {}^{2} times 9 \ 462 = frac{66}{7} times r {}^{2} \ r {}^{2} = 462 times frac{7}{66 } \ r = sqrt{49} \ r = 7$

jari jari dari kerucut adalah 7 cm