Calcule a área da superfície de um cilindro com altura de 10 cm e raio da base de 4 cm.

A cone has a radius of 4 cm and a height of 9 cm. What is the relationship between the volume of this cone and a cylinder with the same radius and height?

[b] A sphere, its volume is \( 36 \pi \mathrm{~cm}^{3} \). Calculate its area.

A rectangular prism has a length of 5 cm, a width of 3 cm, and a height of 4 cm. Calculate its volume.

A rectangular prism has dimensions of length 5 meters, width 3 meters, and height 2 meters. Calculate the volume of the prism.

5.4. Two chords equal to the radius are drawn from a given point of the circle. Find the angle between them.