Question

Bisa minta tolong jawab gak no 3 dan 5 makasih secepatnya ya

Answer 1

3)
(2a+1)+(3a-16)=90
5a-15=90
5a=105
a=21
5)
y+15+2y-30=180
3y-15=180
3y=195
y=15
y+15=x+16
15+15=x+16
30=x+16
14=x

Answer 2

3. (2a+1)+(3a-16) = 90 (karena sudut penyiku)
    5a-15                = 90
    5a = 90+15
    5a = 105 
    a   = 105/5 = 21 
5.(y+15)=(x+16) + (2y-30) = 180
   (y+15)+(2y-30)=180
   3y-15=180
   3y=180+15
   3y=195
   y   =195/3 = 65
   
  (x+16)+(2y-30)=180
  (x+16)+100 = 180
  x+116=180
  x=180-116
  x=  64