Question

Решение в ПАСКАЛЕ!!!фермер построил две теплицы одинаковой длины L (M). Первая теплица имеет в поперечном сечении форму прямоугольника со сторонами размером А на В (метров), вторая - полукруг радиуса R (М). Определить, сколько метров полиэтиленовой плётки необходимо фермеру для укрытия всей поверхности теплиц (включая торцы).

Answer 1

Program D1KPxx9;
uses crt;
const pi=pi;
var
a,b,l,r,sum:real;
begin
readln(a,b);
l:=(a+b)*4;
r:=b/2;
sum:=l;
l:=2*pi*r;
l:=l/2;
sum:=sum+l+2*r;
writeln('пленки надо  ',sum:0:2);
end.

вроде работает, вручную не пересчитывал, вводится с клавиатуры числа А и Б, где Б равно длине(обозначенной у тебя Л)-> р=Л/2 или т.к. Б=Л то р=Б/2 
все)))

Answer 2

Problem Statement

A farmer has built two greenhouses of the same length L (in meters). The first greenhouse has a rectangular cross-section with sides measuring A and B (in meters), while the second greenhouse has a semicircular shape with a radius of R (in meters). The farmer wants to determine how many meters of polyethylene film are needed to cover the entire surface area of the greenhouses, including the ends.

Solution in Pascal

To solve this problem in Pascal, we can use the following steps:

1. Calculate the surface area of the rectangular greenhouse. 2. Calculate the surface area of the semicircular greenhouse. 3. Add the surface areas of both greenhouses to get the total surface area. 4. Multiply the total surface area by 2 to account for both ends of the greenhouses. 5. Convert the total surface area to meters by multiplying by the length L.

Here is the Pascal code to solve this problem:

program GreenhouseCoverage;

var
  L, A, B, R, RectangularArea, SemicircularArea, TotalArea, FilmLength: real;

begin
  // Input the values of L, A, B, and R
  writeln('Enter the length of the greenhouses (L): ');
  readln(L);
  writeln('Enter the dimensions of the rectangular greenhouse (A and B): ');
  readln(A, B);
  writeln('Enter the radius of the semicircular greenhouse (R): ');
  readln(R);
  
  // Calculate the surface area of the rectangular greenhouse
  RectangularArea := 2 * (A * B);
  
  // Calculate the surface area of the semicircular greenhouse
  SemicircularArea := (pi * R * R) / 2;
  
  // Calculate the total surface area
  TotalArea := RectangularArea + SemicircularArea;
  
  // Calculate the length of the polyethylene film needed
  FilmLength := 2 * TotalArea * L;
  
  // Output the result
  writeln('The farmer needs ', FilmLength:0:2, ' meters of polyethylene film to cover the entire surface area of the greenhouses.');
  
end.

Please note that the code assumes that the values of L, A, B, and R are entered by the user. You can modify the code to read these values from a file or any other source if needed.

I hope this helps! Let me know if you have any further questions.