Answer:
60
Step-by-step explanation:
The perimeter is the measurement around an object.
So first you multiply the 20 and the 10 by 2.
20 * 2 = 40
10 * 2 = 20
Then, add then up!
40 + 20 = 60
Answer: 60
10+10= 20 (both sides)
20+20=40 (other sides)
40+20=60 (total sides)
