Enumera diferentes tipos de polígonos y proporciona un ejemplo para cada uno.

Select all of the following ways in which health science professionals use communication skills: To express scientific ideas To perform scientific measurements To share experiment results To sound smarter

A cylindrical drill with radius 2 is used to bore a hole through the center of a sphere of radius 5 . Find the volume of the ring shaped solid that remains.

The points \( A(2,3), B(-11,8) \) and \( C(-4,-5) \) are vertices of a parallelogram \( A B C D \) which has \( A C \) as a diagonal. Find the coordinates of vertex \( D \).

\( \left. \begin{array} { r } { 39 } \\ { + 16 } \\ { 37 } \\ { 3 } \end{array} \right. \)

2) A penguin swam at the rate of 12 kilometres per hour for 20 minutes. How far did it swim?