Respuesta :

ddss1972

Step-by-step explanation:

sum of angles of triangle= 180

X+3 +2X-2 + X+19 = 180

4X + 20 = 180

4 X= 160

X= 40

m< A = 2x 40 - 2= 78

m < B= 40+3 = 43

m < C= 40+19 = 59

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