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- #include <iostream>
- #include <math.h>
- using namespace std;
- int main()
- {
- int fig,aria,r,lung,lat,b,h;
- const double PI =3.141592653589793238463;
- cout<<"1 - Cerc 2 - Dreptunghi 3 - Triunghi /n";
- cin>>fig;
- switch(fig)
- {
- case 1: {
- cout<<"Introduceti raza cercului: ";cin>>r;
- aria = r*r*PI;
- cout<<"Aria cercului este: "<<aria;
- }
- break;
- case 2:{
- cout<<"Introduceti lungimea dreptunghiului: ";cin>>lung;
- cout<<"Introduceti latimea dreptunghiului: ";cin>>lat;
- aria = lung*lat;
- cout<<"Aria dreptunghiului este: "<<aria;
- }
- break;
- case 3:{
- cout<<"Introduceti lungimea inaltimii triunghiului: ";cin>>b;
- cout<<"Introduceti lungimea bazei corespunzatoare inaltimii triunghiului: ";cin>>h;
- aria = b*h/2;
- cout<<"Aria triunghiului este: "<<aria;
- }
- break;
- }
- return 0;
- }
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