" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
maka jumlah sudut = 360derajat
maka
360 = sudut ABC +sudut OCB + sudut OAB + sudut AOB
360 = 70 + 90 +90 + sudut AOB
360 - 250 =sudut AOB
sudut AOB =110
semoga membantu...::-)