A concert is held in a stadium with stadium seating. There are 20 seats in the first row, 25 seats in the second row, 30 seats i
1 answer:
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Given:
The figure of a square base pyramid.
To find:
The area of volume of the pyramid.
Solution:
The area of square base is:
Area of one triangular side of the pyramid is:
Now, the total surface area of the pyramid is:
Therefore, the surface area of the pyramid is 672 square m.
The volume of the pyramid is:
Where, B is the base area and h is the vertical height of the pyramid.
Substituting , we get
Therefore, the volume of the pyramid is 512 cubic meters.
Hence the correct option is d.
Answer:
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