c++

Problem 1 Calculate and display the area of a circle based on a given radius. Formula : Area of a circle = 3.14 * radius * radius Problem 2 In a math subject Sam has taken 5 monthly tests. Input the marks Sam has secured in each of the tests and find out his average mark. Then display the result Problem 3 Solve the problem to calculate the sum, average, difference, product, quotient and remainder of two integer numbers given by the user. Display their results. Display also a message "Sum is bigger than Product", if the value of sum is greater than product