" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
pakai kombinasi
= 2C6 = 6! /(2! x 4!) = 6 x 5 x4! / (2! 4!)
= 15
jadi ada 15 segitiga jika a dijadikan sudutnya