Let's start by drawing rectangle ABCD with the given measurements, base b= 7inches and height h= 4inches.
The perimeter of a polygon is found by adding all of the side lengths. For rectangles, we can shorten this formula a little bit because opposite sides have the same measures.
P=2 b+2 h
By substituting the given base and height of the rectangle into this formula, we can calculate the perimeter.