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  • 17-09-2022
  • Mathematics
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Find the value of j. Show all steps to the solution and give reason to your calculations

Find the value of j Show all steps to the solution and give reason to your calculations class=

Respuesta :

douglas9015 douglas9015
  • 17-09-2022

Answer:

j=50°

Step-by-step explanation:

10x-20=5x-3+4x-2( ext angle of ∆)

10x-5x-4x=-3-2+20

x= 15

substitute the value if x

10(15)-20+ j=180 ( sum of angles in straight line)

130+j=180

j=180-130

j=50°

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