Can you hell me? Find the surface area of the solid. Round to the nearest whole unit, if necessary: a square pyramid with a base area of 9 ft and a slant height of 8 ft
1 Answer
Explanation:
Imagine you have a net of the square pyramid, it should include a square at the center and 4 congruent triangles attached.
We know that the area of the square is
We also know that the slant height is
The area of a triangle can be calculated as
We have four copies of the triangle, so we have to multiply it by 4 =>
Let's label all of the areas we know on our diagram now. Don't forget to label the square.
Looking at the diagram, we now have all we need to find the total surface area. Adding up all of the areas on the diagram we have: