1 foot = about 30.5 cm
15 feet = about 457.5 cm = 4.575 meters
30 feet = about 915 cm = 9.15 meters
9.15*4.575 = 41.86125 square meters which is about 42 square meters
30ft x 90ft = 2,700 sq ft or 250.8382 square meters.
3.9 square meters.
195.1 square meters
16.72 square meters.
12.54 square meters.
30ft x 90ft = 2,700 sq ft or 250.8382 square meters.
15-ft x 18-ft = 270 square feet = 25.084 square meters (rounded)
3.9 square meters.
Is the 30ft the radius or the diameter. The area of a circle = Pi x (radius squared), so, if the diameter is 30ft, making the radius 15ft, the area would be Pi x(15 squared) square feet, and the area of its semicircle would be half of that, so the area required = Pi x (15 squared) divided by 2 = 353.429 sq ft On the other hand, if the diameter is 15ft, making the radius 7.5ft then the area required = Pi x (7.5 squared) sq ft for the full circle and half as much for the semicircle = 88.3573 sq ft As an extra; you will find that the area of the smaller semicircle is exactly one quarter of that of the larger semicircle, and I wonder if you can reason out why that is so.
195.1 square meters
16.72 square meters.
12.54 square meters.
22ft * 15ft = 330 sq ft = 30.658 sq metres
24ft x 15ft = 360 ft^2 = 360 square ft 360 square ft = 33.4 square meters
3029.7 squared meter X (500mm / (1000mm/1m)) 3029.7 squared meters x (500mm *1m/1000mm) 3029.7 squared meters x .5m 1514.85 cubic meters
1square feet is a 0.0929m2 105 square feet is a x m2 x=105*0.0929/1 x=9.7545m
196 meters squared