How do we find the surface area and lateral area of pyramids and cones?

Aim: How do we find surface area and lateral area of pyramids and cones?
Do Now: Reviewing Triangles
1. Find the area of the triangle
height is 20 and the base is 16



Pyramid
A pyramid is a solid that connect a polygon base to point. The Pyramid has 3 triangle faces and a base that is a square.

The Slant Height of a pyramid is the height of one of the lateral faces.

* Formulas*
Lateral area= (1/2)pl
SA= L.A+B

Solve for lateral area and surface area