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359 B
JavaScript

// const PI = Math.PI;
// const E = Math.E;
// const SQRT2 = Math.SQRT2;
const { PI, E, SQRT2 } = Math;
// With require
// const { readFile } = require('fs');
// const circle = {
// label: 'circleX',
// radius: 2,
// };
//
// const circleArea = ({ radius }) =>
// (PI * radius * radius).toFixed(2);
//
// console.log(
// circleArea(circle)
// );