" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
L II = 1/2 x 10cm x 6 cm = 30cm²
L III = 1/2 x 10cm x 21cm = 105cm²
L daerah yang diarsir = (L I - L II) + (L III - L II)
= (80cm² - 30cm²) + ( 105cm²-30cm²)
= 50cm² + 75cm²
= 125 cm² (C)