" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
= 2 ( (12)(4) + (12)(3) + (4)(3) )
= 2 ( 48 + 36 + 12 )
= 2 (96)
= 192 cm²
==========
volume balok = PLT
= 12 * 4 * 3
= 144 cm³
==========
panjang diagonal ruang = √p² + l² + t²
= √12² + 4² + 3²
= √144 + 16 + 9
= √169
= 13 cm