A pile of cone-shaped wheat with a bottom circumference of 12.56 m and a height of 0.6 m is put into a cylindrical granary with a bottom diameter of 4 M, What's the height

A pile of cone-shaped wheat with a bottom circumference of 12.56 m and a height of 0.6 m is put into a cylindrical granary with a bottom diameter of 4 M, What's the height

12.56 / 2 / 3.14 = 2m (bottom radius) 3.14 * 2 * 2 * 0.6 / 3 = 2.512 m3 (volume of wheat) 4 / 2 = 2m (bottom radius of granary) 3.14 * 2 * 2 = 12.56 M2 (bottom area of granary) 2.512 / 12.56 = 0.2m (height) or 12.56 / 3.14 = 4m (bottom diameter of wheat)

The circumference of the bottom of a cone-shaped wheat pile is 12.56 meters and the height is 2.7 meters. Now put the wheat into the cylindrical grain storage, which accounts for 78.5% of the grain storage volume. The circumference of the bottom of the will grain storage is 9.42 meters. How about the height of the grain storage? (two decimal places reserved)

The volume of this pile of wheat: 13 × 3.14 × (12.56 ﹣ 3.14 ﹣ 2) 2 × 2.7, = 13 × 3.14 × 22 × 2.7, = 3.14 × 4 × 0.9, = 11.304 (M3); grain storage volume: 11.304 ﹣ 78.5%, = 11.304 ﹣ 0.785, = 14.4 (M3); grain storage height: 14.4 ﹣ 3.14 ﹣ 3.14 ﹣ 2], = 14.4 ﹣ 3.14 × 2.25, = 14.4 ﹣ 7.065, ≈ 2.04 (m); answer: the grain storage height is about 2.04 M

A cone-shaped wheat pile has a circumference of 12.56 meters at the bottom and a height of 3 meters. Now we put the wheat into a cylindrical grain storage, which accounts for just 14% of the volume of the grain storage. It is known that the circumference of the grain storage is 6.28 meters, so we need to find the height of the grain storage

Radius of wheat pile = 12.56 △ 3.14 △ 2 = 2 (m)
Volume = 3.14 × 2 & # 178; × 3 △ 3 = 12.56 (M3)
Grain storage volume = 12.56 △ 14% ≈ 89.7 (M3)
Grain storage radius = 6.28 △ 3.14 △ 2 = 1 (m)
Bottom area = 3.14 × 1 & # 178; = 3.14 (M2)
Grain store height = 89.7 △ 3.14 ≈ 28.6 (m)