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Please help me with these questions! Can I have fully shown work for both, and the directions say to find the surface area of the piracies thanks.

Please help me with these questions! Can I have fully shown work for both, and the directions say to find the surface area of the piracies thanks. class=

Verified Answer :

Start with the bottom, which is a 5 by 5 square, and you get 25ft^2 or square feet
Then the four sides. The area for a triangle is 1/2 baseheight.
58 is 40/2=20
There are four of these sides so 20*4=80. 
Add this to the bottom and you get 80+25=105 square units

apologiabiology


  1. I think you mean pyramids so
    surface area
    there are triangles on the faces of the pyramids so 1/2BH=SA of 1 of the side so for the whole side
    surface are of each side=BH
    B=5
    H=8
    (5)(8)(1/2)=20
    4 sides
    (4)(20)=80= top surface area

    the surface are of the base
    (5)(5) =25
    25+80=105 sq units
     

    I can't see 6 or 7 so I'm done

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