Is code that runs when a specific event happens. a. a click event b. a shortcut c. a gui d. a callback function

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron (not a pyramid). the pyraminx shown below has edges 15\,\text{cm}15cm15, space, c, m long and vertical height h=12.2\,\text{cm}h=12.2cmh, equals, 12, point, 2, space, c, m. the triangle drawn with dashed lines is a right triangle. what is the distance rrr? round your answer to the nearest tenth.

Are special combinations of keys that tell a computer to perform a command. keypads multi-keys combinations shortcuts

Whats three fourths of 15(this is supposed to be in math but i clicked too fast)