35
For a square area = side2; perimeter = 4 x side. side2 = 1225 sq cm => side = sqrt(1225) = 35cm => perimeter = 4 x 35cm = 140cm.
Surface area = 130.39 square cm
140cm = 4 feet 7.1 inches.
64cm 1.4m = 140cm 140cm - 76cm = 64cm
4.59318 Feet
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You have to be 140cm
You need to be 140cm if you are talking about Alton Towers. However, if you are 1cm under, you **COULD** get on. Not all the rides do you have to be 140cm, like most answers say. Some don't have height restrictions. The only 140cm ones are: Rita Oblivion Air Nemesis Ripsaw. The best is Oblivion.