Write an algorithm and draw a flowchart for the following: [2 marks each] 1. When children visit play zone, at the entry gate their height and age should be checked. He/she should only be allowed to play zone if his/her age is less than 8 years and height is greater than 122cm, otherwise he should not be allowed to enter. Write an algorithm and draw a flowchart for the above scenario. 2. Write an algorithm and draw a flow chart to Read an integer number from the user and check whether the number is positive or negative. If the number is positive add 2 to it otherwise add 20. 3. Write an Algorithm and draw a flow chart based on the following, Calculate the area of circle and calculate the area of rectangle and finally calculate the total area. Where area of circle is Area = r and area of rectangle is Area = L * B.