## The top of the Washington Monument is a triangular pyramid with a triangle base. Each triangular face is 58 feet tall and 34 feet wide and c

Question

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## Answers ( No )

So 4 triangular faces of the pyramid will have total area

= 4 ×12 × base × height = 4 × 12 × 34 × 58ft2 = 3944ft2

So 3944ft2 of marble cover the faces of the pyramid.

Answer:of marble is needed.

Step-by-step explanation:The picture below represents the top of the Washington Monument, with 4 triangles, one on the base and the other 3 forming the monument.

First of all whe have to find the area of one pyramid:

Replacing the values, we have:

As we have 4 triangles forming the top of the Monument, we have to multiply by 4 to find the quantity of marble to use:

Quantity of marble=Area of each triangle * quantity of triangles

Quantity of marble=

Quantity of marble=