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TOPOGRAFIA<br />

20<br />

3) Para determinar a largura de um rio, um topógrafo mediu, a partir de uma base de 20,00m<br />

de comprimento os ângulos A e B, conforme figura. Calcule valor de h.<br />

P<br />

h<br />

A<br />

M<br />

a b<br />

B<br />

74º00'00"<br />

62º00'00"<br />

Luis A. K. Veiga/Maria A. Z. Zanetti/Pedro L. Faggion

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