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algorithm class: pyramid#1254
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| /** | ||
| * This class represents a regular pyramid and can calculate its volume and surface area | ||
| * https://en.wikipedia.org/wiki/Pyramid_(geometry) | ||
| * @constructor | ||
| * @param {number} bsl - The side length of the base of the pyramid. | ||
| * @param {number} height - The height of the pyramid | ||
| */ | ||
| export default class Pyramid { | ||
| constructor (bsl, height) { | ||
| this.bsl = bsl | ||
| this.height = height | ||
| } | ||
| baseArea = () => { | ||
| return Math.pow(this.bsl, 2) | ||
| } | ||
| volume = () => { | ||
| return this.baseArea() * this.height / 3 | ||
| } | ||
| surfaceArea = () => { | ||
| return this.baseArea() + this.bsl * 4 / 2 * Math.sqrt(Math.pow(this.bsl / 2, 2) + Math.pow(this.height, 2)) | ||
| } | ||
| } |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| import Pyramid from '../Pyramid' | ||
| const pyramid = new Pyramid(3, 5) | ||
| test('The Volume of a cone with base radius equal to 3 and height equal to 5', () => { | ||
| expect(parseFloat(pyramid.volume().toFixed(2))).toEqual(15) | ||
| }) | ||
| test('The Surface Area of a cone with base radius equal to 3 and height equal to 5', () => { | ||
| expect(parseFloat(pyramid.surfaceArea().toFixed(2))).toEqual(40.32) | ||
| }) |
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