824 just add all the sides so 12+12+400+400=824 and in simpler form w2+l2
Answer: 
<u>Step-by-step explanation:</u>
Answer:
12/7
Step-by-step explanation:
Make 5 1/7 into improper fraction
(5×7)+1= 36/7
Then make 3 as a fraction
3/1
Divide
36÷3
7÷1
To find the ratio, you Will need to find the ratio of the patio, and the ratio of the scale version of the patio.
16 feet x 20 feet = 320 ft.²
(16/4 = 4 in)/(20/4= 5 in)
4 inches x 5 inches = 20 in.²
320 ft.² / 20 in.² = 16 ft.² / 1 square inch
