struct Triangle{Point2D v1;Point2D v2;Point2D v3;};void f(Triangle& t){}int temp = 12.5;temp = t.v1.x;t.v1.x = t.vl. y;t.v1.y = temp;}int main (){Triangle mytri;mytri.v1.x = 1.0;mytri.v1.y = 22.5;f(mytri);Swaps values of x and y in vertex 1 of an argument of type TriangleInitializes value of x in vertex 1 of an argument of type TriangleSets all x,y values in all vertices of an argument of type TriangleSwaps value of x in vertex 1 with value of x in vertex 2, for an argument of typeTriangle What does the function f do?struct Point2D{double x;double y;struct Triangle{Point2D v1;Point2D v2;Point2D v3;};void f(Triangle&t){}int temp = 12.5;temp = t.v1.x;t.v1.x = t.v1.y;t.v1.y = temp;}int main (){Triangle mytri;mytri.v1.x = 1.0;mytri.v1.y = 22.5;f (mytri);Swaps values of x and y in vertex 1 of an argument of type TriangleInitializes value of x in vertex 1 of an argument of type TriangleSets all x,y values in all vertices of an argument of type TriangleSwaps value of x in vertex 1 with value of x in vertex 2, for an argument of type

Correct answer is (a).a. Swaps values of x and y in vertex 1 of an argument of type TriangleLet's…

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