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In a triangle, the second angle is twice the measure of the first, and the third angle is three times the measure of the second. Find the measure of the third angle.

Respuesta :

if first angle = x   then second angle = 2x and third angle = 2x*3 = 6x

so 6x + 2x + x = 180
        9x = 180
         x = 20

third angle =  6 *20 = 120

Answer:

i just took the test the ANSWER IS (C) 120

Step-by-step explanation:

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