Volume = (Pi/4) x d2 x h = (Pi/4) x 16 x 40 = Pi x 160 = 502.655 cu. cm. (to nearest 3rd decimal.
so a volume of a cylinder is V=3.14r2 X h.. you should be able to do it from there ;)
volume = base area x height = pi x diameter squared / 4 x height vol = 3.14 x 10 x 10 / 4 x 40 = 3140 cubic feet
The question is mis-specified. You ask for the area but give the dimensions for volume.
V = 12,566.37 units3
Volume of the cylinder made by the excavation is pi x r x r x h, where r is the radius and h is the height. So we have volume is pi x 2.5 x 2.5 x 40 = 785.39 cubic feet and must be the amount of soil removed.
If the length is 50 feet and the diameter is 40 feet, the volume is: 62,830 feet3If the length is 40 feet and the diameter is 50 feet, the volume is: 78 540 feet3
so a volume of a cylinder is V=3.14r2 X h.. you should be able to do it from there ;)
volume = base area x height = pi x diameter squared / 4 x height vol = 3.14 x 10 x 10 / 4 x 40 = 3140 cubic feet
40 mm = 0.04 meters Volume = pi*0.042*3 = 0.0151 cubic meters rounded to 4 decimal places
The question is mis-specified. You ask for the area but give the dimensions for volume.
Volume of cylinder: pi*16*40 = 2010.619 cubic cm to three decimal places
The volume is 0.70686 m3
V = 12,566.37 units3
65 - 40 = 25 ml
The area of a cylinder is 2Ï€rh. So, the are of this cylinder is 1130, 4 sq ft.
Outer volume = pi*142*40 cm3 Inner volume = pi*122*40 cm3 Volume of steel = Outer volume - Inner volume = pi*(142 - 122)*40 cm3 = pi*52*40 = 6535 cm3 approx.
Volume of the cylinder made by the excavation is pi x r x r x h, where r is the radius and h is the height. So we have volume is pi x 2.5 x 2.5 x 40 = 785.39 cubic feet and must be the amount of soil removed.