St. Louis arch

facts:

height: 630 ft

width: 630 ft

cost: $13 million to build

the arch is 63 stories tall (each 10 ft)

there are 142 sections to the arch

shape: catenary curve

the equation of the curve is y=k cosh(x/k) and k is the y-intercept.

there are 1,076 steps

stairs are for maintenance and emergencies only, visitors can not walk up or down them.

the viewing area at the to can hold up to 160 people and there is not facilities in this area.

Another name for the arch is " The Gateway Arch."

The arch is the tallest national monument in the United States.

Construction on the arch began February 12, 1963 and ended October 28, 1965.

The arch weighs 17,246 tons and 900 tons of stainless steel was used to build the arch.

On July 10, 1967, the arch was opened to the public.

The base of the legs are 54 ft wide and the top of the arch is 17 ft wide.

The arch was built as a memorial to Thomas Jefferson, the arch played as the gateway to the West.

http://wiki.answers.com/Q/Why_is_the_Gateway_Arch_called_the_Gateway_Arch#slide=3
http://www.history.com/this-day-in-history/gateway-arch-completed
http://www.ask.com/question/why-was-the-gateway-arch-built
http://www.enchantedlearning.com/history/us/monuments/stlouisarch/
http://www.gatewayarch.com/experience/arch-facts-faq/
http://voices.yahoo.com/the-st-louis-gateway-arch-20-interesting-facts-6079114.html?cat=16
I also used Google Images!

Made By: Jewelia Hutton

Class Period: 2nd

Reason it was made: parabola project

For what class: Math 1b

Teacher: Mr.Cribb

(hes awesome!)

haha

Date: 3.30.2014

BYEEEEEEEEE!!!