Question

Tolong lah jawab akn plisssss esok soal nya dikumpul

Answer 1

14)
24 - x + x + 17 - x + 8 = 42
49 - x = 42
-x = 42 - 49
-x = -7
x = 7 ==> B

15)
29 - 25 + 25 + 32 - 25 + x = 40
36 + x = 40
x = 40 - 36
x = 4 ==> C

16)
x - 3y + 8z
= 5° - 3(20') + 8(30")
= 5° - 60' + 240"
= 300' - 60' + 4'
= 244' ==> A

17)
x + 2x = 90
3x = 90
x = 90/3
x = 30
< AOB = x = 30 ==> B

18)
<B1 = <A1 = 96 karena sudt sehadap sma besar ==> B

19)
a + 10 + 110 + a + 10 + 110 = 360
240 + 2a = 360
2a = 360 - 240 
2a = 120
a = 120/2
a = 60 ==> C

20) 
106 - <QOR + <QOR + 142 - <QOR = 180
248 - <QOR = 180
-<QOR = 180 - 248
-<QOR = - 68
<QOR = 68 ==> D

21)
7x + 8x = 90
15x = 90
x = 90/15 = 6
sudut terkecil = 7x = 7(6) = 42 ==> C

22)
35 + x + 35 + x = 360
70 + 2x = 360
2x = 360 - 70
2x = 290
x = 290/2 = 145
<BOC = 145 ==> D

23) 
A1 dan B5 ==> B

24) 
<P dan <N ==> C

25)
8x + 10x = 90
18x = 90
x = 90/18
x = 5
sudut terbesar = 10x = 10(5) = 50 ==> A 

26)
2x + 3x + 4x = 180
9x = 180
x = 180/9 = 20
sudut berturut-turut
2x = 2(20) = 40
3x = 3(20) = 60
4x = 4(20) = 80
JAdi, sudut berturut-turut adalah 40, 60 , dan 80 ==>D

27)
3x + 4x + 75 = 180
7x + 75 = 180
7x = 180 - 75
7x = 105
x = 105/7 = 15
<A = 3x = 3(15) = 45 ==> B

28)
sudut lancip ==> C