hitunglah volume kerucut bila diameter alasnya 28 cm dan garis pelukisnya 50 cm.... n = 22/7

d = 28 cm -> r = 14 cm
garis pelukis (s) = 50 cm
n = 22/7
Jawab =
t = akar 50² - 14² = akar 2500 - 196 = akar 2304 = 48 cm

V = 1/3 nr²t = 1/3 . 22/7 . 14² . 48 = 9856 cm³