A = L * W
A = 400
L = 4W
400 = 4W * W
400 = 4W^2
400/4 = W^2
100 = W^2
sqrt 100 = W
10 = W.....width is 10 cm
L = 4W
L = 4(10)
L = 40...length is 40 cm
P = 2(L + W)
P = 2(10 + 40)
P = 2(50)
P = 100 <=== perimeter is 100 cm
Commutative property
Changing the order doesn’t change the result
Example 2+3 = 3+2
9514 1404 393
Answer:
3.6
Step-by-step explanation:
There are 144 in² in 1 ft².
(518 in²) × (1 ft²)/(144 in²) ≈ 3.597222... ft² ≈ 3.6 ft²
I believe that answer is 54
