To get the area you multiply the length and the width. Doing the math gives an answer of 630 square feet.
21 square yards = 189 square feet.
Assuming its 30 feet then its 30 x30 = 900 sq feet
630 square feet
9.144
30 sq metres = 322.92 sq ft (to 2 dp)
1,306,800 sq feet.
There are: 225*pi sq feet
= 30 x 45 sq feet = 1350 sq feet
525 sq. ft.
322.9 square feet
26*21 = 546 sq feet
1 foot = 12 inches Answer = (21/12) x (21/12) = 49/16 sq feet = 3.0625 sq feet