Curso-lenguaje-C/curso-juantxi/Ejercicios/0102calcularArea.c

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#include<stdio.h>
#define PI 3.14
int main(){
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float radio;
float area;
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printf("\nIndica el radio de una circunferencia: ");
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scanf("%f", &radio);
area=radio*radio*PI;
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printf("\nEl area de la circunferencia de radio %.2f es %.3f\n", radio, area);
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}