The area of a triangle can be calculated by any one of the two different formulas given below.

Using C++

Exercise 1

The area of a triangle can be calculated by any one of the two different formulas given below.

a.       Using the basic formula:  Area =  * base * height /* The formula has to be used when base  and height of the triangle are known*/.

b.      Using the Heron’s formula: Area =   Where a,b and c are the sides of the triangle and s is called the semi perimeter and    s = (a+b+c). /* This formula must be used when the values for the sides of the triangle are known*/

Note: You can use the sqrt() function provided in cmath library.

Exercise 2

When you borrow money to buy a house, a car, or for some or for some other purposes, then you typically repay it by making periodic payments. Suppose that the loan amount is A, r is the rate of interest per year, m is the number of payments in a year, and the loan is for t years. Suppose that i = (r/m) and r is in decimal, then the periodic payment is:

Develop and the function that returns the periodic payment. The amount loaned, rate of interest and the number of payments in a year must be input by the user.

Note:

You can use the pow function provided in cmath library to evaluate any expression that has power (or exponent).

Sample input/output:

Enter the amount in AED: 100000.00

Enter interest rate: 0.05

Enter number of years: 5

Enter number of payments in a year: 12

Periodic payment (per month) is: 1887.12

Total amount paid in AED is: 113227.00

Press any key to continue . . .