octass car: anit (self, speed, fuel, weight, brand, color): self.speed - speed def self.fuel - fuel self.weight = weight self.brand brand self.color color HAniCuper car(258, 40. 20Z0, "HÁDACUOSC itan) BH - car(326, 68, 1930, "DHn", "Blue") Hercedes car(380, 50, 2195, "Hercedes-Benz", "Black") print(Hinicuper.speed, Hinicuper. fuol, Hinicuper.neight, Ninicuper.brand, Hinicuper.color) print(BHW. speed, BHW.fuel, BHW.weight, BHW.brand, BHW.color) print(Hercedes.speed, Hercedes.fuel, Hercedes.weight, Mercedes.brand, Hercedes.color)
AB = AC = BC = AS = BS = CS = 2
OF = 1/4*OS
Центр основания пирамиды О - это центр равностороннего тр-ка АВС.
CM - медиана, она же биссектриса и высота тр-ка АВС.
AM = AB/2 = 1, CM = √(AC^2 - AM^2) = √(2^2 - 1^2) = √(4 - 1) = √3
MO = 1/3*CM = √3/3; OA = OC = 2/3*CM = 2√3/3
OS = √(CS^2 - OC^2) = √(4 - 4*3/9) = √((36-12)/9) = √24/3 = 2√6/3
OF = 1/4*OS = 2√6/12 = √6/6
И наконец находим угол между плоскостью MBF = ABF и ABC.
tg(OMF) = OF/MO = (√6/6) / (√3/3) = √6/6 * 3/√3 = √6/(2√3) = √2/2
OMF = arctg (√2/2)