1) Write an algorithm and draw a flowchart that will read the base and height of a triangle and calculate its area. (Note: area=1/2 * base "height) 2) Write an algorithm and draw a flowchart that will...

1) Write an algorithm and draw a flowchart that will read the base and height of a triangle and calculate its area. (Note: area=1/2 * base "height) 2) Write an algorithm and draw a flowchart that will calculate the area of circle using the following formula: area>3.14 * radius 2 3) Write an algorithm and draw a flowchart that will calculate the Gross pay for the input given as hours worked, rate per hour using the following formula: pay=hours *rate; 4) Write an algorithm and draw a flowchart that reads a value, then determines whether its positive or negative value and prints the message accordingly.