The Program in C++ to Find the third angle of a Triangle is given below:
#include <iostream>
using namespace std;
int main() {
double angle1, angle2, angle3;
cout << "Enter first angle of the triangle: ";
cin >> angle1;
cout << "Enter second angle of the triangle: ";
cin >> angle2;
angle3 = 180 - angle1 - angle2;
cout << "Third angle of the triangle: " << angle3 << endl;
return 0;
}
Output:
Enter first angle of the triangle: 45
Enter second angle of the triangle: 89
Third angle of the triangle: 46
Pro-Tips💡
In this program, the user is prompted to enter the first and second angles of the triangle.
These angles are then stored in the variables angle1 and angle2.
The third angle is then calculated using the formula angle3 = 180 - angle1 - angle2,
which is based on the fact that the sum of the angles of a triangle is always 180 degrees.
The resulting third angle is then displayed on the screen.
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