24 lines
536 B
C++
24 lines
536 B
C++
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#include <iostream>
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#include <cmath>
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using namespace std;
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const float PI = 3.14159;
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double Area(double a, double b)
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{
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return PI * pow(a, 2) * b / 360;
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}
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double Area(double a)
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{
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return PI * pow(a, 2);
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}
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int main(int argc, char const *argv[])
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{
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double r, x;
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cout << "请输入半径和角度: " << endl;
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cin >> r >> x;
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cout << "半径为 " << r << ", 角度为 " << x << " 的扇形面积为: " << Area(r, x) << endl;
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cout << "半径为 " << r << ", 的圆的面积为: " << Area(r) << endl;
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return 0;
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}
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