ashlynham
ashlynham
20-09-2017
Mathematics
contestada
How do I solve for x?
Respuesta :
apologiabiology
apologiabiology
20-09-2017
the external angle is equal to the sum of the other 2 interior angles
basically 109=6x+21+2x
109=8x+21
minus 21 both sides
88=8x
11=x
x=11 degreees
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