" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Luas alas =
perbandingan sisi pada sudut segitiga sama sisi
alas : tinggi : s miring
1 : √3 : 2
panjang sisi = 4 cm
L selubung = keliling Δ × tinggi
= 3(4 cm) × 10√3 cm
= 120√3 cm²