Question 4714
P=2(l+b)=22" ---[1]
l=b-4 ----------[2]

2(l+b)=22
(l+b)=11
given l=b-4
(b-4)+b=11
2b-4=11
2b=11+4
b=15/2
 =7.5"
l=b-4=7.5-4=3.5"
<P>
<B>ANS: 3.5"*7.5"</b>