middle line into two trapezoids
Объяснение:
https://www.sparkblue.org/content/123movies-watch-cherry-2021-online-full-movie-hd-free-2
https://www.sparkblue.org/content/123movies-watch-dark-web-cicada-3301-2021-online-full-movie-hd-free
https://www.sparkblue.org/content/123movies-watch-long-weekend-2021-online-full-movie-hd-free-0
https://www.sparkblue.org/content/123movies-watch-sas-red-notice-2021-online-full-movie-hd-free
https://www.sparkblue.org/content/123movies-watch-unbearable-weight-massive-talent-2021-online-full-movie-hd-free-1
https://www.sparkblue.org/content/123movies-watch-trust-2021-online-full-movie-hd-free
https://www.sparkblue.org/content/123movies-watch-below-zero-2021-online-full-movie-hd-free-0
https://www.sparkblue.org/content/123movies-watch-tom-jerry-2021-online-full-movie-hd-free
https://www.sparkblue.org/content/123movies-watch-wrong-turn-2021-online-full-movie-hd-free-2
https://www.sparkblue.org/content/123movies-watch-little-things-2021-online-full-movie-hd-free-4
https://www.sparkblue.org/content/123movies-watch-monster-hunter-2021-online-full-movie-hd-free-0
https://www.sparkblue.org/content/123movies-watch-judas-and-black-messiah-2021-online-full-movie-hd-free-1
https://www.sparkblue.org/content/fullwatch-judas-and-black-messiah-2021-online-movie-free-123movies
https://www.sparkblue.org/content/fullwatch-dark-web-cicada-3301-2021-online-movie-free-123movies
https://www.sparkblue.org/content/fullwatch-trust-2021-online-movie-free-123movies
https://www.sparkblue.org/content/fullwatch-below-zero-2021-online-movie-free-123movies
https://www.sparkblue.org/content/fullwatch-tom-jerry-2021-online-movie-free-123movies
https://www.sparkblue.org/content/fullwatch-wrong-turn-2021-online-movie-free-123movies
https://www.sparkblue.org/content/fullwatch-monster-hunter-2021-online-movie-free-123movies
https://indexanom-emon.cookpad-blog.jp/articles/578060
https://paiza.io/projects/IAQuMPR_eARebYIfm3oLcA
https://paiza.io/projects/WZYx8bZWCAXhEgoYC237Og?language=php
https://caribbeanfever.com/profiles/blogs/hangtdmenenan-tahi
https://paiza.io/projects/wanFWWaHo4Q8E5GGVmqh1Q?language=php
https://indexanom-emon.cookpad-blog.jp/articles/578065
Мы знаем,что у треугольника 3 стороны, значит чтобы найти периметр,нужно их сложить.
P∆=a+b+c.
Чтобы найти периметр, нужно знать его все стороны.
Пусть x будет коэффициент, значит 6х,5х,4х} стороны треугольника. P=75см.
По условию задачи составим и решим уравнение:
6х+5х+4х=75см.
15х=75см.
х=75:15
х=5
Мы узнали сколько будет x, тогда узнаем все остальные его стороны.
|ст.=6х=6•5=30см.
||ст.=5х=5•5=25см.
|||ст.=4х=4•5=20см.
ПРОВЕРКА:
30 СМ + 25 СМ + 20 СМ=75 СМ.
75см.=75см.
ответ: |ст.=30см.;
||ст.=25см.;
|||ст.=20см.
катет = кв.корень(13^2-12^2) = 5 см
площадь = 5*12/2 = 30см^2
ответ. 30 см 2