Https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_My_Hero_Academia_Heroes_Rising_2019_HD_FULL_ONLINE_STREAM_FREE https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Chal_Mera_Putt_2_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Scoob_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Contagion_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_The_Hunt_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_The_Secret_Garden_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Bad_Trip_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Blue_Story_2019_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Stardust_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Jojo_Rabbit_2019_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Birds_of_Prey_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Never_Rarely_Sometimes_Always_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Jumanji_The_Next_Level_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Spies_in_Disguise_2019_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_The_Invisible_Man_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Extra_Ordinary_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Saint_Frances_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Sonic_the_Hedgehog_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Star_Wars_The_Rise_of_Skywalker_2019_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Justice_League_Dark_Apokolips_War_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Bloodshot_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Onward_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Bad_Boys_for_Life_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_Extraction_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_After_We_Collided_2020_HD_FULL_ONLINE_STREAM_FREE
https://learning.cmu.edu/eportfolios/3408/Home/FREEWatch_The_Wretched_2019_HD_FULL_ONLINE_STREAM_FREE
http://world-surf.com/forum/worldsurf-talk/86784/free-watch-2020-movie-online-free/
https://caribbeanfever.com/photo/free-watch-movie-online-2020?context=user
http://facebookhitlist.com/forum/topics/free-watch-movie-hd-2020
https://pasteio.com/xIkZnYi7hRKH
https://paste.tbee-clan.de/grDjx#
https://pastebin.com/w4Ac6fk2
https://paiza.io/projects/7CiYkWFcXFcqV9MG1yNJdg
http://www.4mark.net/story/2090667/free-watch-movie-hd-2020
https://www.peeranswer.com/question/5eda9be26d66e84407db0f50
S=3,14*4(4+8) =150,72(дм²)
Из задания выходит, что задана правильная четырёхугольная пирамида SАВСД, высота SO которой равна ребру "a". Точка О - центр основания (точка пересечения его диагоналей).
Пусть длина ребра основания а = 1, диагональ основания d = √2.
Для определения угла между смежными боковыми гранями проведём сечение через диагональ ВД основания перпендикулярно боковому ребру . Получим равнобедренный треугольник ВКД, угол К которого равен углу между боковыми гранями.
Высоту из вершины К этого треугольника найдём как высоту h из вершины прямого угла в треугольнике SOД. Для этого найдём длину бокового ребра SД:
SД = √(1² + (√2/2)²) = √(1 + (2/4)) = √(3/2).
h = (1*(√2/2)/√(3/2) = 1/√3.
Теперь можно получить ответ:
угол ВКД = 2arc tg((d/2)/h) = 2arc tg((√2/2)/(1/√3)) = 2arc tg√(3/2) =
= 2*50,76848 = 101,537 градуса.