please type fill program with coding

MP1100%20Assignment-1.pdf Assignment-1 (10%) Due: Week-6 1 | Page 1. The circumference, C, of a circle is given by the formula C = 27, where it is the constant 3.1416 (accurate to four decimal places) and r is the radius of the circle. Using this information, write a C++ program to calculate the circumference of a circle that has a 2-inch radius. 2. length = 12.0 * g * [time/(2.0 * 7)] In this formula, accurate to four decimal places is equal to 3.1416, and g is the gravitational constant equal to 32.2 ft/sec. When the time of a complete swing is given in seconds, the length of the pendulum is in feet. Using this formula, you're to write a C++ program that calculates and displays the length of a pendulum needed to produce a swing that's completed in 1 second. The length is to be displayed in inches. 3. Application: Telephone Switching Networks In a directly connected telephone network, all telephones are connected and don't require a central switching! station to establish calls between two telephones. For example, financial institutions on Wall Street use this hatunk to maintain continuously open phone lines between firms. The number of lines needed to