princeevee
princeevee princeevee
  • 20-03-2017
  • Mathematics
contestada

can someone help me please?

can someone help me please class=

Respuesta :

Аноним Аноним
  • 20-03-2017
Part 1: 
m∠1+m∠2+m∠3=180
5X-5+3X+2X-5=180
10X-10=180
10X=190
X=19
That's the value of X~.
Part 2: 
∠4=180-∠3
∠3=2X-5,  because X=19
So, ∠3=33°
∠4=180-33
∠4=147°
That's your answer lovely~
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