daisystar0515
daisystar0515 daisystar0515
  • 26-01-2021
  • Mathematics
contestada

what is the value of a?​

what is the value of a class=
Relax

Respuesta :

DanAndRiYa
DanAndRiYa DanAndRiYa
  • 26-01-2021

Answer:

A=60

Step-by-step explanation:

Add 28+20+12

A=60

Answer Link
subikaacharya
subikaacharya subikaacharya
  • 26-01-2021

Answer:

3.

Step-by-step explanation:

12a+20a+28a=180(sum of interior angle of a triangle )

or, 60a=180

or, a= 180/60

therefore ..... a=3

Answer Link

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