Posted by calvin on .
The perimeter of a rectangular painting is 266 centimeters. If the length of the painting is 77 centimeters, what is its width?

math 
Ms. Sue,
P = 2L + 2W
266 = 2(77) + 2W
266 = 154 + 2W
266  154 = 2W
112 = 2W
? = W