" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
BD/9 = 9/15
15BD = 81
BD = 5,4
AD = AB² - BD²
9² - 5,4²
81 - 29,16
√51,84
7,2 cm atau 7 1/5cm (C)