Answer:
528 is the Area
148 is the Perimeter
Step-by-step explanation:
We know that there is a 4 foot ring around the building so we add 8 feet to 18 x 40 which is 26 x 48.
To find the perimeter we take the Length and Height times 2 and then add that together.
26•2=52
48•2=96
52+96=148
148 is the Perimeter.
To find the area of the sidewalk.
We have to multiply the area together.
4•48=192•2=384
18•4=72•2=144
528
Add that together you have the area of the sidewalk