Linha curva, parte de um círculo.
A curved line, part of a circle
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See how the word “arco” is used in sentences
A bola voou num arco alto. — The ball flew in a high arc.
Desenha um arco deste ponto até ao canto. — Draw an arc from this point to the corner.
Qual é o comprimento do arco entre as duas marcas? — How long is the arc between the two marks?
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