Aright cylinder has a radius of 2 units and a height of 5
units.
What is the volume of the cylinder? Round
nearest tenth
E
O 31.4 cubic units.
O 62.8 cubic units
O 157.1 cubic units
O 314.2 cubic units.

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.