savanahudgins
savanahudgins savanahudgins
  • 10-01-2018
  • Mathematics
contestada

What is the value of x

What is the value of x class=

Respuesta :

choixongdong
choixongdong choixongdong
  • 10-01-2018
Sum of interior angles of polygon:
= 180(n - 2)
= 180(5-2)
= 180(3)
= 540

so
2x = 540 - (90+100+70)
2x = 540 - 260
2x = 280
x = 140

answer 
x = 140

Hope it helps
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