UNIT 1-day 4

For instance, say you were an engineer putting up glass on the Luxor hotel in LAS VEGAS.
It is a 3-d pyramid and you are the leader for how big the hotel is.

to find the total surface area, you are to take the base of the luxor. The base is 646ft. Then, you are to find the slant height which is 476ft. to find the total surface area,  it's 2bs+b2
so that means, you take the base length and multiply it by the slant height. after you do that, you multiply it by 2.
it should look like--
646ft x 476ft=307,496 x 2=614,992

after that, you take the base and square it. 646ft(2)  and that gets you__360,000

after the 2 numbers are acheived, you add them. 360,000+614,992= 974,992ft 2**total surface area***                                                            ^^^^^^



quiz

A-a pyramid has the base of 120ft and the height of 300ft, what is the surface area?
B- a cylinder has a height of 10ft and a radius of 50ft, what is the surface area?
C- a prism has a base of 300ft and height of 27ft, what is surface area?

answers



A-259,200ft2
B-17,584ft2
C-8100ft2