I don't know not mine
slant height of the pyramid Louvre in Paris=28 meters
By using trigonometry or Pythagoras' theorem
I don't know not mine
false
The slant height will be 25 cm
if you know the height and the apothem, use pythagorean theorem to solve for it.
Why do you need to FIND the slant height if you have the [lateral height and] slant height?
no
The height of the triangular face of a pyramid is called the slant height.
Knowing the slant height helps because it represents the height of the triangle that makes up each lateral face. So, the slant height helps you to find the surface area of each lateral face.
You need some information about the height of the pyramid and the formula will depend on whether you have the vertical height or the slant height or the length of a lateral edge.
LA=1/2ps