That is no pyramid. If it has a square side, usually the base then it will have four triangular sides
at the bottom is is a square and triangle on the sides
A triangle with five sides is a pyramid. There are four sides that originate from each of the four edges of the bottom square, which is the fifth side.
It could be a square based pyramid
Four sides of a pyramid are triangular-shaped, meaning they have three sides. The fifth side is square-shaped, meaning it's four-sided.
A tetrahedron is made up of four equal sided triangular sides (a pyramid has four triangular sides and a square base, but that's probably not what you were looking for). The triangle itself always has exactly three sides.
A triangle.
It is a pyramid.
faces form the side of the triangle (pyramid) tringle then tht makes lines
A pyramid has a triangle for each side of the base, thus for a square pyramid you'll need one square (for the base) and 4 triangles.
A traditional Egyptian pyramid features five sides. Four sides create the sides of a pyramid; the last side creates the base (bottom) of a pyramid.four triangular sides and square base5 sides. 1 for the base, 4 for the sides. (Square based pyramid)
truncated pyramid
The surface area of the pyramid is superfluous to calculating the slant height as the slant height is the height of the triangular side of the pyramid which can be worked out using Pythagoras on the side lengths of the equilateral triangle: side² = height² + (½side)² → height² = side² - ¼side² → height² = (1 - ¼)side² → height² = ¾side² → height = (√3)/2 side → slant height = (√3)/2 × 9cm = 4.5 × √3 cm ≈ 7.8 cm. ---------------------------- However, the surface area can be used as a check: 140.4 cm² ÷ (½ × 9 cm × 7.8 cm) = 140.4 cm² ÷ 35.1 cm² = 4 So the pyramid comprises 4 equilateral triangles - one for the base and 3 for the sides; it is a tetrahedron.