Problem #22
Solution Source Code
Code Overview
1. Header Files and Namespace:
<iostream>
is included for input and output operations.<string>
is included for potential future use (not used in this program).<cmath>
is included to usepow()
for exponentiation (B²
).using namespace std;
allows the use of standard functions without prefixing them withstd::
.
2. User Input Function (ReadTriangleData
)
- Uses reference parameters (
float &A, float &B
) to modify the values directly. - Prompts the user to enter:
- The side length (A) of the isosceles triangle.
- The base length (B) of the triangle.
3. Area Calculation Function (CircleAreaByITriangle
)
- Takes the side length (A) and base length (B) as input.
- Uses the given formula to compute the area of a circle inscribed in an isosceles triangle:
- This is implemented as:
float Area = PI * (pow(B, 2) / 4) * ((2 * A - B) / (2 * A + B));
pow(B, 2)
calculatesB²
.PI
is defined as3.141592653589793238
for precise calculations.
- Returns the computed area.
4. Output Function (PrintResult
)
- Receives the computed area as a parameter.
- Prints
"Circle Area = [Area]"
.
5. Program Execution (main()
)
- Calls
ReadTriangleData()
to get user input. - Calls
CircleAreaByITriangle()
to compute the inscribed circle's area. - Calls
PrintResult()
to display the result. - Returns
0
to indicate successful execution.
This structured explanation ensures clarity and ease of understanding.
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