Question

PLEASE PLEASE HELP ME
Find the lateral area the regular pyramid L. A. =? https://media.glynlyon.com/g_geo_2012/8/groupi77.gif

Answer 1

@phi

Answer 2

a = apothem length, s,b = side, h = height and l = slant height

1) Area of the base(A) = ½ * a * s =
2) Find the surface area of pyramid
Surface Area of Pyramid = A + ((3/2)sl)
3) Find the volume of pyramid.
Volume of Pyramid = (1/6)abh

Easycalculatio.com

Answer 3

as you can see, each face of the pyramid is an equilateral triangle.
The area of an equilateral triangle is
http://www.mathwords.com/a/area_equilateral_triangle.htm

\[ \text{Area of one face }= \frac{s^2 \sqrt{3}}{4} \]
replace s with 4, and do the arithmetic.

The pyramid has 3 faces, so multiply that area by 3 to get the lateral area of your pyramid