Plz answer all the questions on both pictures

ooo cricket 1:58 AM isidore.udayton.edu 17_FA CPS 150 N1 HW Assigns >Homework Assignment 1: Intro to Java Programming > CPS 150 Homewor R2.21 You are cutting off a piece of pie like this, where c is the length of the straight part (called the chord length) and h is the height of the piece. There is an approximate formula for the area: A ch 2c However, h is not so easy to measure, whereas the diameter d of a pie is usually well-known. Calculate the area where the diameter of the pie is 12 inches and the chord length of the segment is 10 inches. Generalize to an algorithm that yields the area for any diameter and chord length. R2.25 For each of the following computations in Java, determine whether the result is exact, an overflow, or a roundoff error. . a. 2.01.1 b. 1.0E61.0E6 C. 6553665536 d. 1 000 000L1 000 00OL R2.26 Write a program that prints the values . 3100010001000 3.0 * 1000 * 1000 * 1000 Explain the results. R2.27 This chapter contains a number of recommendations regarding variables and constants that make programs easier to read and maintain. Briefly summarize these