What are the famous axisymmetric buildings?

The Temple of Heaven is in the south of Beijing, east of Yongdingmennei Street in Dongcheng District. Covers an area of about 2.73 million square meters.

The Temple of Heaven was founded in the 18th year of Yongle in Ming Dynasty (1420), and was rebuilt and rebuilt during the reign of Qing Qianlong and Guangxu. It is a place where emperors of Ming and Qing dynasties offered sacrifices to the emperor and prayed for a bumper harvest of grain. The Temple of Heaven is the floorboard of two altars, Qiuqiu and Gucci. It has a double altar wall, forming an inner altar and an outer altar. The altar wall is round in the south and round in the north, symbolizing a round place. The main building is in the inner altar, with the ball altar in the south and the valley prayer altar in the north. The two altars are on the same north-south axis, separated by a wall. The main buildings of the ball altar are the ball altar and the royal dome. The main buildings of the Valley Altar are the Hall of Praying for the Year, the Palace and the Gate of Praying for the Year.

2. Arc de Triomphe

The Arc de Triomphe in Paris is located in the center of Charles de Gaulle Square in Paris, France, at the western end of the Champs Elysé es.

The Arc de Triomphe, as its name implies, is the gate to welcome the victorious troops who went to war. It is the largest circular arch in the world today, located on the roundabout in the center of Charles de Gaulle Square in the center of Paris. This square was also built with the Arc de Triomphe of Lions. Because the completion of the Arc de Triomphe brought inconvenience to traffic, in the middle of19th century, a circular square and 12 roads were built around the Arc de Triomphe. Each road is 40 ~ 80 meters wide and radial, just like the light from the stars, so this square is also called the Star Square. The Arc de Triomphe is also known as the "Stargate". The Arc de Triomphe is located at the end of the famous Champs Elysé es.

3. Notre Dame de Paris

Notre Dame de Paris is a church building located on Xidi Island in the center of Paris, France, and also the cathedral of the Catholic Parisian diocese.

Notre Dame was built between 1 163 and 1250. It belongs to Gothic architecture and is one of the most important representative churches in ile-de-france. Founded in 1 163, it was decided by the Archbishop of Paris, Maurice de Sully. The whole church was completed in 1345, which lasted more than 80 years.

4. Taj Mahal

The Taj Mahal is one of the most famous monuments in India and a world cultural heritage, and it has been selected as the "New Seven Wonders of the World".

The Taj Mahal, known as the Taj Mahal, is a huge mausoleum mosque made of white marble, which was built by the Mughal emperor Shah Han Jia in Agra from 163 1 to 1653 to commemorate his beloved concubine. It is located in Agra, Uttar Pradesh, more than 200 kilometers away from Delhi, on the right side of yamuna river. It consists of a main hall, a bell tower, a steeple and a pool. They are all made of pure white marble and inlaid with glass and agate, which has high artistic value.

5. Tiananmen Square

Tiananmen Square is located in the center of Beijing, the capital of People's Republic of China (PRC), at the southern end of the Forbidden City. It faces Tiananmen Square, the Monument to the People's Heroes, Chairman Mao Memorial Hall, the Great Hall of the People and the National Museum of China across Chang 'an Avenue. It covers an area of 4,800 square meters and attracts worldwide attention because of its outstanding architectural art and special political status.

Tiananmen Square was the main entrance of Beijing Imperial City in Ming and Qing Dynasties. It was founded in the 15th year of Yongle in Ming Dynasty (14 17). It was originally named "Chengtianmen", which means "inheriting the business of heaven and being ordered by heaven". The designer is Kuai Xiang, a royal architect of the Ming Dynasty. In the eighth year of Qing Shunzhi (165 1), it was renamed Tiananmen Square. It consists of two parts: tower and tower. It has white marble seats with a total height of 34.7 meters. The gate building of Tiananmen Square is 66 meters long and 37 meters wide. There are five gates under the city gate, and the largest gate in the middle is located on the central axis of Beijing Imperial City. In the past, only the emperor could enter and exit through this gate. Mao Zedong's portrait hangs above the middle doorway, with big slogans such as "Long live the people and country of China" and "Long live the great unity of the people of the world" written on both sides.

Axisymmetric figure, a mathematical term, is defined as a figure folded along a straight line in a plane, and the parts on both sides of the straight line can completely overlap.

A straight line is called the axis of symmetry, and the axis of symmetry is represented by a dotted line. At this time, we also say that this graph is symmetrical about this line. Such as circle, square, isosceles triangle, equilateral triangle, isosceles trapezoid, etc.

Axisymmetric graphics must be folded along a straight line, and the parts on both sides of the straight line overlap each other. The key is to grasp two points: one is to fold along a straight line, and the other is to overlap each other.

References:

Baidu Encyclopedia _ Axisymmetric Graphics