Answer:
22
Step-by-step explanation:
The preimeter is adding all sides together. I took 154-55 twice sense we have four sides of a rectangle and two are lengths. after that i got 44. I then just remembered we had two sides left so divided that by 2 and got 22
S = a² => 20 = a² => a = √20 ≈ 4.5 cm
10 * 3
hope I helped :)
Z=1
