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Ulideas.a new sports shop. therem-it's a professionala andy wв: i'm ap• talkipeopa) 5110and repthese jolanguagimagine you see an excited crowd of people outside a new sporde the shop. it's david beckham! you run to get his autoorsomeone inside thyou can't. thats because it's not the real david beckham - it's a prolook-alikeprofessional look-alikes are people who look like famous starsthey make a living from appearing at parties, events andsometimes in advertisements. andy harmer is davidbeckham's best look alike. he doubles for david beckham ontv commercials and films. he can also play football welland he makes appearances with the real david! he looksso much like the famous footballer that he is a successwherever he goes. but he doesn't just look like beckhamhis voice is similar to david's too.as david beckham's look-alike, he travels the world andmeets lots of david's fans. andy likes what he does, but it's notas edsy as it seems. he has to keep fit and copy beckham's newhairstyles all the time but it's all worth it when the fans see him! tograph перевод. ​

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semenov-1970
               В                             
                   / | \
                 /   |   \
               /     |    \
             /       |     \
           /         |      \
      А / |___ \   С
                    Н
Предположим, что это равносторонний треугольник)
Проводим высоту ВН, так как треугольник равносторонний, то она является и высотой, и биссектрисой, и медианой
В равностороннем треугольнике все углы = 60°
ВН - проекция
Нам известна сторона треугольника АВ = а, тогда ВН=(а×√3)/2
ответ: а√3/2. криво, но как есть
myliar21585356
По формуле Герона находим площадь основания.
р = (16+63+65)/2 = 144/2 = 72 см.
So = √(p(p-a)(p-b)(p-c)) = √(72*56*9*7) = √ 254016 = 504 см².
Если все боковые рёбра имеют одинаковый угол наклона к основанию, то вершина пирамиды равно удалена от вершин основания.
При этом проекции боковых рёбер на основание равны высоте H пирамиды и равны радиусу R описанной около треугольника основания окружности.
R = abc/(4S) = 16*63*65/(4*504) =  65520/2016  = 32.5 см.
Получаем объём пирамиды:
V = (1/3)SoH = (1/3)504*32,5 = 5460 см³.

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Ulideas.a new sports shop. therem-it's a professionala andy wв: i'm ap• talkipeopa) 5110and repthese jolanguagimagine you see an excited crowd of people outside a new sporde the shop. it's david beckham! you run to get his autoorsomeone inside thyou can't. thats because it's not the real david beckham - it's a prolook-alikeprofessional look-alikes are people who look like famous starsthey make a living from appearing at parties, events andsometimes in advertisements. andy harmer is davidbeckham's best look alike. he doubles for david beckham ontv commercials and films. he can also play football welland he makes appearances with the real david! he looksso much like the famous footballer that he is a successwherever he goes. but he doesn't just look like beckhamhis voice is similar to david's too.as david beckham's look-alike, he travels the world andmeets lots of david's fans. andy likes what he does, but it's notas edsy as it seems. he has to keep fit and copy beckham's newhairstyles all the time but it's all worth it when the fans see him! tograph перевод. ​
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