A cylindrical steel with a bottom diameter of 6 decimeters and a height of 4 decimeters is melted and cast into a cone with a bottom area of 12.56 square decimeters. What is the height of the cone?

A cylindrical steel with a bottom diameter of 6 decimeters and a height of 4 decimeters is melted and cast into a cone with a bottom area of 12.56 square decimeters. What is the height of the cone?

3.14 × (62) 2 × 4 × 3 / 12.56, = 3.14 × 9 × 4 × 3 / 12.56, = 339.12 / 12.56, = 27 (decimeter), a: the height of the cone is 27 decimeters

Cast a cylindrical steel with a bottom diameter of 4 decimeters and a height of 3 decimeters into a cone. The bottom area of the cone is 12.56 square decimeters. How high is it?

The height of cone = 3.14 × (4 △ 2) &# 178; × 3 × 3 △ 12.56 = 9 decimeters

A cylindrical steel with a circumference of 12.56 cm and a height of 6 cm is melted and cast into a cone. The bottom area of the cone is 16 square cm. How many cm is its height?

12.56 × 6 × 3 △ 16, = 226.08 △ 16, = 14.13 (CM); a: the height of this cone is 14.13 cm