Question:Find the lateral surface area of the square pyramid.A.81 CM2B.108 CM2C.54 CM2D.216 CM2

to find the lateral surface are we have to find the are of one of the triangles with the equation:
[tex]A=\frac{b\cdot h}{2}[/tex]So if we replace the base and the hight the area will be:
[tex]A=\frac{9\cdot12}{2}=54[/tex]