Answer: 48.4 cm^2
Step-by-step explanation:
l*h=40 cm^2
l*(l+3)=40 cm^2
l*(l+3)=5*8
so l=5, h=8
when l=5+10/100 *5=5+1/2=5.5 cm
h=8+10/100*8=8+8/10=8.8 cm
Area now is 5.5*8.8=48.4 cm^2
Answer:
A= 10B/3 +4
Answer: 3 1/2
