Program to calculate area of circle

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Program to calculate area of circle Area of Circle in C copy and paste the below code in editor #include int main() { float ra,area,pi; scanf("%d",&radius) area = pi*radius*radius; printf("%f",area); return 0; } ### Input - First line will contain $T$, number of testcases. Then the testcases follow. - Each testcase contains of a single line of input, two integers $M, R$. ###

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solution.cppC++17

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