Question

In the picture provided, describe the three dimensional figure that will be produced if the rectangle is rotated about the vertical axis.A. a cylinder with radius of 5 cm and height of 3 cm B.a cylinder with height of 5 cm and radius of 3 cm C. a cylinder with diameter of 5 cm and height of 3 cm D. a cylinder with height of 5 cm and diameter of 3 cm

Answer 1

To answer this question, we need to do a drawing like this:

If we see the figure from above, we will see that the figure will have a radius of 5 cm, and, therefore, a diameter of 10 cm. The height will be always 3 cm.

Therefore, if the rectangle is rotated about the vertical axis, we will have a cylinder of radius equal to 5 cm and a height of 3 cm.

Hence, the answer is option A: a cylinder with a radius of 5 cm and a height of 3 cm.