Question

A square pyramid has a slant height of 13 meters and a height of 12 meters. What is the surface area if the square base has sides of length 10 meters?

Answer 1

I started by linfing the lateral area.. La= 1/2 pl and got 1/2 40(13) = 260

Answer 2

Let's find the area of the square base=
10 *10=100 m^2
Now let's find the area of one triangular surface
its lateral height=13 meters
base=10
so area =13*10/2=65
there are 4 surfaces like this=65*4=260
total surface area=260+100=360 m^2