about 40 feet , or 14 meters, or about 1070 cm
490 sq feet = 490/9 = 54.44... sq yards.
we know,1 hm=10000 cm 490 cm=490/10000=0.049 hm
49cm
4.9
192.9 inches
0.049
490 square feet.
49 decimeters.
1 m=100 cm 1 cm=1/100 m =490/100=4.9 m
490 square feet.
3 feet = 1 yard so the answer is 1,470 feet.