Example 1: Find the lateral area of the regular rectangular pyramid.
5 cm
Step 1: Identify the base. Draw it to help find the perimeter of it.
2.5 cm
"regular rectangular" means
all sides are
P= 4(2.5cm) =
cm
2.5 cm
Step 2: Identify the slant height of the pyramid, height of the lateral face of the pyramid.
I=
cm
Step 3: Substitute "P" and "l' into the lateral area formula.
L=P7