johns0511
johns0511 johns0511
  • 26-02-2021
  • Mathematics
contestada

please help. passed due! find angle ABC.

please help passed due find angle ABC class=

Respuesta :

ekerlin14 ekerlin14
  • 26-02-2021

Answer:

ABC=17

Step-by-step explanation:

Ver imagen ekerlin14
Answer Link
siya90258
siya90258 siya90258
  • 26-02-2021

Answer:

so angle abd is 87°. than the equation look like this.

angle abc+ cbd =angle abd

9x -1°+6x+58°=87°

15x+57°=87°

15x=87° - 57°

15x=30°

30/15=x

x=2

angle abc=9x-1°

and 9x-1° equal to 9×2-1 = 18 - 1 = 17

Answer Link

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