silvakettley silvakettley

08-05-2018
Mathematics

contestada

quando o Ângulo de elevação do sol e de 70 a sombra de um edifício medes 20 cm calcule a altura do edifício
dados : sen 70=0,93 cos 70=0,3 e tg70=2,74?

Respuesta :

mathstudent55 mathstudent55

08-05-2018

Use x para a altura.

tg 70 = x/(20 cm)

x = 20 cm * tg 70

x = 20 cm * 2,74

x = 54,8 cm

Resposta: A altura do edifício é 54,8 cm.

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