Growing with Applied Mathematics Experiences (G.A.M.E.)

Geometry in my country

Jean Monnet High School

Mara Negrescu

Romanian Atheneum

In 1865, cultural and scientific personalities such as Constantin Esarcu, V. A. Urechia, and Nicolae Creţulescu founded the Romanian Atheneum Cultural Society. To serve its purposes, the Romanian Athenaeum, a building dedicated to art and science, would be erected in Bucharest https://ro.wikipedia.org/wiki/Ateneul_Rom%C3%A2n

ThebuildingwasdesignedbytheFrencharchitect Albert Galleron, built on a property that had belongedtotheVăcărescufamily andinaugurated in 1888, although work continued until 1897. A portion of the construction funds was raised by public subscription in a 28-year-long effort, of which the slogan is still remembered today: "Donate one leu for the Ateneu!"

Mathematical remarks

In the triangle CDE, CD=DE=3cm, the angle CDE measures 145°.

1) Calculate the EC.

2) Find the scale of the attached image, if the facade has a length of 23.19 m (according to Google maps) and in the picture it is 3 cm.

3) Find the real area of CDE triangle.

Solution:

Geometry in real life

Find a function that models this skyscraper Ternary Tower in Shanghai, China

Solution: f(x)=0.63sinx with a rotation by 90 degrees around the point O, ��:(��; ∞)

Clubul eTwinning „Jean Monnet”