We have the same club (20 members and 3 officers), but this time, Ali has a huge crush on Brenda, and won't be an officer unless she is one too. Brenda is unaware of Ali's affections, and doesn't care if he is an officer or not; she is perfectly happy to be an officer even if Ali isn't one. In how many ways can the club choose its officers

Calculates the volume, lateral area and surface area of a square pyramid given the base side and height.

base side a

height h

6digit10digit14digit18digit22digit26digit30digit34digit38digit42digit46digit50digitvolume V

lateral area F

surface area S

slant height b

angle of inclination φ

degree

Settings softkey

The base and height of the Great Pyramid of Khufu are calculated as default values (230.4m and 146.6m).