" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
2a+3a = 90
5a = 90
a = 18
(disubtitusi)
2a = 2(18) = 36° (c)
12.
5x+20+3x = 180
8x+20= 180
8x = 160
x = 20
(disubtitusi)
= 5x+20
= 5(20)+20
= 100+20
= 120° (A)
5a = 90°
a = 18
<SPR = 2a = 2 . 18 = C. 36
12. 5x+20+3x = 180°
8x+20 = 180°
8x = 160
x = 20
<ABD = 5x+20 = 5 . 20+20 = 100+20 =
A. 120°