- In geometry and trigonometry, a right angle is an angle of exactly 90 degrees or đ/2 radians corresponding to a quarter turn. If a ray is placed so that its endpoint is on a line and the adjacent angles are equal, then they are right angles. The term is a calque of Latin angulus rectus; here rectus means “upright”, referring to the vertical perpendicular to a horizontal base line.
- Paramount leader (Wikipedia)
Paramount leader (Chinese: æé«éąćŻŒäșș; pinyin: ZuĂŹgÄo LÇngdÇorĂ©n; lit. ‘highest leader’) is an informal term for the most important political figure in the People’s Republic of China (PRC). The paramount leader typically controls the Chinese Communist Party (CCP) and the People’s Liberation Army (PLA), often holding the titles of CCP General Secretary and Chairman of the Central Military Commission (CMC). The state representative (president) or head of government (premier) are not necessarily paramount leaderâunder China’s party-state system, CCP roles are politically more important than state titles.
