Question

The perimeter of a rectangular rug is 30 yd and its length is 9 yd.find the area of this rug

Answer 1

perimeter of a rectangular rug is 30 yd

P= L+L+W+W 
 P= 9+9+W+W 
P= 18 + 2W 
18 + 2W = 30    
 2W = 30-18 
W= 12/2 = 6

A= L x W 
A= 9   x w 
A= 9  x 6 = 45 yd square