Answer :
Answer:
10 inches
Step-by-step explanation:
perimeter = 2(w+L)
42=2(11+w) --> divide both sides by 2
42/2=2/2(11+w)
21=11+w ---> subtract both sides by 11
21-11 = 11 + w-11
10=w
Answer:
10 inches
Step-by-step explanation:
perimeter = 2(w+L)
42=2(11+w) --> divide both sides by 2
42/2=2/2(11+w)
21=11+w ---> subtract both sides by 11
21-11 = 11 + w-11
10=w