miela23
miela23 miela23
  • 06-03-2022
  • Mathematics
contestada

calculate the value of a.

calculate the value of a class=

Respuesta :

chibunduoyibe
chibunduoyibe chibunduoyibe
  • 06-03-2022

Answer:

a=20

Step-by-step explanation:

5a+a+60+2a+140=360 (sum of angles at a point)

8a+200=360

8a=360-200

8a=160

a=160/8=20

Answer Link
aomar77
aomar77 aomar77
  • 06-03-2022

Angles around a point = 360°

5a + (a+60) + (2a +140) = 360°

5a + a + 60 + 2a +140 = 360°

5a +a + 2a = 360-60-140

8a = 160

a= 20°

Answer Link

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