Task 1.
A cylinder has the radius 5cm,the height 10cm.Find the surface of this cylinder.
Task2.
Calculate the surface of a cone. The radius is 10cm, the height is 5cm.
Task3.
The height of a cone is 3cm.The axial section is a rectangular triangle. Find the area of the section.
Task4.
The height of a cylinder is 5 cm. The diagonal of the axial section forms the 45 degrees angle with its base. Find the surface of this cylinder.
Task 5.
The cylinder and the cone have the same height and radius. Compare their volumes .