bruhlol12301230no2
bruhlol12301230no2 bruhlol12301230no2
  • 02-07-2020
  • Mathematics
contestada

can i have some help please?

can i have some help please class=

Respuesta :

marcthemathtutor
marcthemathtutor marcthemathtutor
  • 02-07-2020

Answer:

42°

Step-by-step explanation:

given OA and OC are perpendicular, the angle between the lines are 90°

this means that ∠AOB and ∠BOC add up to 90°, i.e.

(6x-6) + (5x+8) = 90

6x-6 + 5x+8 = 90

11x - 6 +8 = 90

11x + 2 = 90 (subtract 2 from both sides)

11x = 90- 2

11x = 88 (divide both sides by 11)

x = 8  

Hence, m∠BOC

= 6x - 6

= 6(8) - 6

= 48 - 6

= 42°

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