#include <stdio.h>
int main() {
 
    int age = 19;
    float height = 181.2;
    double weight = 62.4;                                         // น้ำหนักในหน่วยกิโลกรัม
    double height_in_meters = height / 100;                       // แปลงส่วนสูงจากเซนติเมตรเป็นเมตร
    double bmi = weight / (height_in_meters * height_in_meters);  // คำนวณ BMI
    char name[] = "Suttawee";
    char surname[] = "Ritsamak";
    char studentID[] = "6710210355"; 
    double num1 = 3.14, num2 = 1.50;
    double sum = num1 * num2;                                  // คำนวณ num1 คูณ num2
 
    double radius = 6.2374;                        // กำหนดค่ารัศมี
    double area;
    double circumference;                       // ประกาศตัวแปรสำหรับเก็บค่าเส้นรอบวง
    area = 3.14159 * radius * radius; 
    circumference = 2 * 3.14159 * radius;
 
 
    printf("Age: %d years\n", age);             // แสดง Age
    printf("Height: %.1f cm\n", height);        // แสดง Height
    printf("BMI: %.2f\n", bmi);                // แสดงค่า BMI ด้วยทศนิยม 2 ตำแหน่ง
    printf("Name: %s\n", name);                 // แสดง Name
    printf("Surname: %s\n", surname);          // แสดง surname
    printf("Student ID: %s\n", studentID);    // แสดง student ID
    printf("Sum: %.3f\n", sum);               // แสดงผลด้วยทศนิยม 3 ตำแหน่ง 
    printf("Radius: %.4f\n", radius); 
    printf("Area: %.5f\n", area);     
    printf("Circumference: %.4f\n", circumference);
    return 0 ;
}
 
 
 

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