Answer:
A = 400 cm^2
Step-by-step explanation:
The perimeter of a square is given by
P = 4s where s is the side length
80 = 4s
Divide each side by 4
80/4 = 4s/4
20 =s
We want to find the area of the square
A = s^2
A = 20^2
A = 400 cm^2
Answer: 275 +
+20.2 = 296
275 +
- 20. = 255.
Step-by-step explanation:
275 +
+ 20.2 (
= 275 + 0.8 + 20.2
= 275.8 + 20.2 = 296
275 +
- 20.2
= 5 + 0.8 - 20.2 (
= 0.8)
= 275.8 - 20.2 = 255.
I hope this answer your
(1, 1), 5 + 2 = 7, not that hard!