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Examine the diagram.
Complete the statement by typing the letter of the angle.
m______= 54°​

Examine the diagram Complete the statement by typing the letter of the angle m 54 class=

Respuesta :

s1m1

Answer:

m∠B=54°

Step-by-step explanation:

use the fact that the sum of angles in a triangle is 180°

2x+7+4x-10+7x-25 =180

combine like terms

13x -28 =180

13x = 180+28

x= 208/13= 16

∠B = 4x-10 = 4*16 -10 = 64-10= 54°

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