Cplusplus_HW1

# Cplusplus_HW1 - Calculate radius by using Diameter/2 De´ne...

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Elizabeth King & Amanda Montoya Introduction to Engineering 1 Prof. Fahad AlGheshyan March 15, 2016 C++ Homework 1 1. Problem analysis: The program will compute the surface area and volume of three different hemispheres using three different diameters the user will impute. The program will compute this using the following formulas: Volume : The volume of a hemisphere is: V=2/3(πr^3) Surface Area : external side ? = 2 ??^ 2 Base = ?? = ??^ 2 Total surface area is: ? = ? + ? = (2 ??^ 2) + ( ??^ 2) = 3 ??^ 2 Radius = Diameter/2 2. Input : - The constant π= arcos(-1) - Diameter: This will be given by an output statement where the user will be able to assign the value for this variable. - This variables will be floating type (double) 3. Output: - Surface area (float) - Volume (float) 4. Algorithm: Assign the constant π. Define three different variables for diameter and radius.

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Unformatted text preview: Calculate radius by using Diameter/2. De´ne the variable volume. Calculate the volume by using the formula V=2/3(πr^3). De´ne the variable Surface Area. Calculate it by using the formula ? = ? + ? = (2 ??^ 2) + ( ??^ 2) = 3 ??^ 2. Display results. Problems solved by hand: V= 2/3(π (5/2) ^3) = 32.7249 meters^3 SA= 3 ? (5/2) ^ 2 = 58.9049 meters^2 V= 2/3(π (2/2) ^3 = 2.0944 meters^3 SA= 3 ? (2/2) ^ 2= 9.4248 meters^2 V= 2/3(π (1/2) ^3) = 0.2180 meters^3 SA= 3 ? (1/2) ^ 2 = 2.3562 meters^2 V= 2/3(π (3.5/2) ^3 = 11.2246 meters^3 SA= 3 ? (3.5/2) ^ 2 = 28.8634 meters^2 V= 2/3(π (4.2/2) ^3 = 19.3962 meters^3 SA= 3 ? (4.2/2) ^ 2=41.5633 meters^2 V= 2/3(π (8.8/2) ^3 = 178.4090 meters^3 SA= 3 ? (8.8/2) ^ 2 =182.4637 meters^2...
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