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PenhaFerreira1
@PenhaFerreira1
April 2020
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suponha que as medidas dos quatro ângulos de um quadrilátero são expressos por 90º,98º,x+2º e x -2º, nessa condições, qual é o valor de x?????
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GabrielAw9
Soma dos angulos internos é 360, logo:
90+98+x+2+x-2=360
x+x=360-90-98-2+2
2x=360-188
2x=172
x=172/2
x= 86
x+2= 88 e x-2= 84
90+98+88+84= 360
1 votes
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PenhaFerreira1
obrigada,valeu
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90+98+x+2+x-2=360
x+x=360-90-98-2+2
2x=360-188
2x=172
x=172/2
x= 86
x+2= 88 e x-2= 84
90+98+88+84= 360