Question

Luas selimut kerucut yang garis pelukisnya 10cm dan diameter alasnya 12cm adalah

Answer 1

Diket: d=12➡ r=12:2=6cm
s=10
dit: lsk=...?

Lsk=πrs
=3,14×6×10
=3,14×60
=188,4cm^2

Answer 2

Dik : s = 10 cm
d = 12cm , r = 1/2 . 12, r = 6 cm
dit : luas selimut kerucut =...?
jawab
luas selimut kerucut
= πrs
= 3,14 . 6 . 10
= 18,84 . 10
= 188,4 cm^2
jadi, luas selimut kerucut = 188,4 cm^2