" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
180°=5x-5
180°+5=5x
185°=5x
x=37
a=2(37)+13
a=87°
a = 2x+13
b = 3x-18
besar sudut berpelurus = 180
mk :
a + b = 180
(2x+13) + (3x-18) = 180
5x - 5 = 180
5x = 180+5
x = 185/5
x = 37
jadi bsr sudut a = 2(37)+13 = 87
bsr sudut b = 3(37) - 18 = 93