kevinn30
kevinn30 kevinn30
  • 28-01-2021
  • Mathematics
contestada

Difficult Math. Up to the challenge?

Difficult Math Up to the challenge class=

Respuesta :

mariamibrahim223
mariamibrahim223 mariamibrahim223
  • 28-01-2021

Answer:

We have the three angles of a triangle as an equation, so we can add them together, and they equal 180.

So:

4x+10+12x-6+3x+5= 19x+9=180

19x=171 ... so: x= 171/19 = 9.

So ABC = 102 .. Obtuse angle

BAC = 46 .. Acute angle

BCA = 32 .. Acute Angle

Edit:

Angle 1 = 180 - BAC = 180 - 46 = 134

Angle 2= 180 - ABC = 180 - 102 = 78

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