please help and make sure all the answers and work is right

Algebra
Tutor: None Selected Time limit: 1 Day

Mar 4th, 2015

Area of triangle=base*height/2

 Pyramid=4triangles+1 rectangle

area of trianlgles = 2*(437*356/2 )+2*(440*356/2)

           =2*77786+2*78320

Area of base%440*620=1.92*10^5


Total=155572+156659+192000

=504212 ft^2


    

Mar 4th, 2015

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