" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
sudut pusat = aob = 2 x sudut keliling (menghadap busur yg sama)
aob = 2 x acb
80 = 2 X acb
acb = 40 derajat
<ACB = ?
<ACB = 1/2 x <AOB
<ACB = 1/2 x 80 derajat
<ACB = 40 derajat