Lighthouses Gloucester
lighthouses gloucester
Math help Trigonometry?
The Eastern Point Lighthouse in Gloucester, Massachusetts was established in 1832 to help fishermen into the harbor. It is still used today by the Coast Guard. A fisherman along the shore wanted to know how tall it was. He is 6 ft. tall and he measures his shadow to be 1.7 ft. The lighthouse casts a shadow of 10.2 ft., approximately how tall is the Eastern Point Lighthouse?
Answers
17.9
36
104
Please explain easy points
You can use proportions to answer this question. You can make two fractions with the information you have, and then set them equal to each other. Just solve for the variable with cross multiplication:
6 ft/1.7ft = x ft/10.2ft
1.7x = (6)(10.2)
1.7x = 61.2
x = 36 ft
Your answer is 36 feet. I hope this helps!
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