🔺 PIRÁMIDE TRIANGULAR Área , Volumen | No se conoce el Apotema | Juliana la Profe

📝 In the following video, we learn how to calculate the area and volume of a triangular pyramid knowing the side heights, the basic edges, and the height of the pyramid. Since we don't know the apothem of the triangle, we must calculate it using the Pythagorean Theorem. THE TRINGULAR PYRAMID It is a figure composed of 3 faces (isosceles triangles) and 1 base (equilateral triangle). Regular triangular pyramid: the base is an equilateral triangle and is straight (the line perpendicular to the base that passes through the vertex of the pyramid intersects the base at its center). The side faces are isosceles triangles and are equal. VOLUME The volume of a regular triangular pyramid is the product of the area of ​​the base (AB) and the height (H) of the pyramid divided by three. The area of ​​the base is the area of ​​an equilateral triangle. TOTAL AREA The total area is the sum of the three isosceles triangles plus the area of ​​the equilateral triangle. LATERAL AREA The lateral area is the area of ​​all the faces of a geometric solid. In the case of a triangular pyramid, the lateral area is the area of ​​three isosceles triangles.