Apolyhedron has 6 vertices and 9 edges. how many faces does it have?
a. 3b. 5c. 7d. 92. a polyhedron has 25 faces and 36 edges. how many vertices does it have?
a. 11b. 12c. 13d. 14

What is the value of x? enter your answer in the box. (cm)

In each diagram, line p is parallel to line f, and line t intersects lines p and f. based on the diagram, what is the value of x? ( provide explanation)

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.