Mathematics for IGCSE & O level - Mensuration (Section 5 - No. 24)
A cylinder and a cone each have base radius 5cm. The cone and the cylinder both have the same volume. Find the height of the cone.
3 cm
12 cm
6 cm
18 cm
解释
Volume of cylinder = πr²h , Volume of cone = 1/3πr²h. For same volume, Height of cone = 3 * height of cylinder. Since, we don't have height value.