mav1983 mav1983

27-09-2019
Mathematics

contestada

What is CBE for this one I need help??

What is CBE for this one I need help class=

Respuesta :

27-09-2019

Step-by-step explanation:

42+5x+7x+6=180 (sum of angles in straight line is 180)

48+12x=180
12x=180-48
12x=132
x=132/12
x=11

now m <CBE =7x+6=7×11+6=77+6=83

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