" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
240 = 1/2 * 30 * d₂
480 = 30 * d₂
d₂ = 480 / 30
d₂ = 16 cm
(selanjutnya di gambar)
Jadi, keliling belah ketupat tersebut adalah 68 cm.