Rafael wants to use 30 centimeters of wood to frame a rectangular photo. What is the greatest area his photograph could have?

a)14 sqaure cm
b)36 square cm
c)54 square cm
d)56 square cm

2 answers

P = 2L + 2W

The dimensions could be:

2 by 13
3 by 12
4 by 11
5 by 10
6 by 9
7 by 8

What is the largest area of these dimensions?
56