Seudónimo
Seudónimo
16-11-2016
Mathematics
contestada
pls answer with working out
Respuesta :
charstar
charstar
19-11-2016
It is a pentagon so the sum of the angles is 520, therefore:
75+140+2x+5x+3x+5=520
80+140+2x+5x+3x=520
220+2x+5x+3x=520
2x+5x+3x=300
10x=300
x=30
Hope this helps :)
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