" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
t= 15 cm
phi= 22/7
dit: a. r
b. luas permukaan kerucut
penyelesaian:
a. volume kerucut= 1/3 phi r^2 t
770= (1/3) (22/7) (r)^2 (15)
770= 15,71r^2
r^2= 770/15,71
r^2= 49,01
r= 7 cm
b. luas permukaan kerucut= phi r^2
= (22/7) (7)^2
= (22/7) (49)
= 154 cm
semoga membantu