Formula for Area of A Cone. The two sides a and b of a right triangle and the hypotenuse c are related by a 2 b 2 c 2. B is the area of the base of the cone.
You can think of a cone as a triangle which is being rotated about one of its vertices.
The lateral area is a fancy name for the area of the surface that connects the base to the peak. Volume 314 radius2height. The formula for the surface area and volume of the cone is derived here based on its heighth radiusr and slant heightl. Since the base is a circle area of the base p r 2.