task 1 has been created

task1/js/index.js

+"use strict";
+class Figure {
+    constructor() {
+        this.area = 0;
+        this.figure = "figure";
+    }
+}
+class Rectangle extends Figure {
+    constructor(height, lenght) {
+        super();
+        this.figure = "Rectangle";
+        this.height = height;
+        this.lenght = lenght;
+    }
+    calculateArea() {
+        this.area = this.height * this.lenght;
+    }
+}
+class Triangle extends Figure {
+    constructor(height, baseline) {
+        super();
+        this.figure = "Triangle";
+        this.height = height;
+        this.baseline = baseline;
+    }
+    calculateArea() {
+        this.area = (this.height * this.baseline) / 2;
+    }
+}
+class Cerlce extends Figure {
+    constructor(radius) {
+        super();
+        this.figure = "Cercle";
+        this.radius = radius;
+    }
+    calculateArea() {
+        this.area = Math.PI * Math.sqrt(this.radius);
+    }
+}
+const Figures = [new Rectangle(20, 30),
+    new Triangle(40, 60),
+    new Cerlce(40)];
+const printFigures = (arr) => {
+    arr.forEach(figure => {
+        figure.calculateArea();
+        console.log(`Area of ${figure.figure}:`, figure.area);
+    });
+};
+printFigures(Figures);

task1/src/index.ts

+abstract class Figure{
+    public area: number = 0;
+    public figure: string = "figure";
+    public abstract calculateArea(): void;
+}
+
+class Rectangle extends Figure{
+    public height: number;
+    public lenght: number;
+    public override figure: string = "Rectangle";
+
+    constructor(height: number, lenght: number){
+        super();
+        this.height = height;
+        this.lenght = lenght;
+    }
+    public override calculateArea(): void {
+        this.area = this.height * this.lenght;
+    }
+    
+}
+class Triangle extends Figure{
+    public height: number;
+    public baseline: number;
+    public override figure: string = "Triangle";
+
+    constructor(height: number, baseline: number){
+        super();
+        this.height = height;
+        this.baseline = baseline;
+    }
+    public override calculateArea(): void {
+        this.area = (this.height * this.baseline) / 2;
+    }
+    
+}
+class Cerlce extends Figure{
+    public radius: number;
+    public override figure: string = "Cercle";
+
+    constructor(radius: number){
+        super();
+        this.radius = radius;
+    }
+    public override calculateArea(): void {
+        this.area = Math.PI * Math.sqrt(this.radius);
+    }
+    
+}
+
+const Figures = [new Rectangle(20, 30),
+new Triangle(40, 60),
+new Cerlce(40)]
+
+
+const printFigures = (arr: Figure[]) => {
+    arr.forEach(figure => {
+        figure.calculateArea();
+        console.log(`Area of ${figure.figure} :`, figure.area);
+    });
+}
+printFigures(Figures);