Approximately how far are you from base of the arch

Reference no: EM13104536

You are driving into St. Louis, Missouri, and in the distance you see the famous Gateway-to-the-West arch. This monument rises to a height of 192 m. You estimate your line of sight with the top of the arch to be 4.5° above the horizontal. Approximately how far (in kilometers) are you from the base of the arch?

Reference no: EM13104536

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