This site explains how to do this.
http://www.mathsisfun.com/geometry/pyramids.html
The slant height of a regular pentagonal pyramid is 6 cm, and the length of each side of the base is 3 cm. Find the lateral area.
2 answers
LA = PHs/2 = (5*3)*6 / 2 = 45cm^2.
LA = Lateral Area.
P = Perimeter.
Hs = slant Height.
LA = Lateral Area.
P = Perimeter.
Hs = slant Height.
2 answers