math
posted by Jason .
A rectangular school yard 280 m by 245 m is to be fenced. How many metres of
fencing will be required to fence it completely?

P = 2L + 2W
P = 2(280) + 2(245)
P = _______ meters 
Rectangular school yard 280 meters by 245 meters is to be fenced, how many meters of fencing will be required to fence it completely

1050

1050

280+280=560
245+245=490
560+490=1,050