" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
jumlah kedua sudut = 180'
jumlah perbandingan 2 + 3 = 5
besar sudut = 2/5 x 180
= 360/5 = 72'
penyiku = 90 - 72 = 18'