it complete

geom.js

@@ -1,27 +1,96 @@
+//class Rectangle {
+//constructor(length, width) {
+//this.length = length;
+//this.width = width;
+//}
+//}
+
 class Rectangle {
-  constructor(length, width) {
-    this.length = length;
+  constructor(height, width) {
+    this.height = height;
     this.width = width;
   }
+
+  isSquare() {
+    if (this.height === this.width) {
+      return true;
+    }
+  }
+  area() {
+    console.log("The area is " + (this.height * this.width));
+  }
+
+  perimeter() {
+    console.log("The Perimeter is " + ((2 * this.height) + (2 * this.width)));
+  }
 }
 
 
+//class Triangle {
+//constructor(sideA, sideB, sideC){
+//this.sideA = sideA;
+//this.sideB = sideB;
+//this.sideC = sideC;
+//}
+//}
+
 class Triangle {
-  constructor(sideA, sideB, sideC){
+  constructor(sideA, sideB, sideC) {
     this.sideA = sideA;
     this.sideB = sideB;
     this.sideC = sideC;
   }
+
+  isEquilateral() {
+    if (this.sideA === this.sideB && this.sideA === this.sideC && this.sideB === this.sideC) {
+      return true;
+    }
+  }
+  isIsosceles() {
+    if (this.sideA === this.sideB || this.sideA === this.sideC || this.sideB === sideC) {
+      return true;
+    }
+  }
+  area() {
+    let p = (this.sideA + this.sideB + this.sideC) / 2
+    let area = (Math.sqrt(p * ((p - this.sideA) * (p - this.sideB) * (p - this.sideC))))
+    console.log("The Area is " + area);
+  }
+  isObtuse() {
+    if ((this.sideA * this.sideA) + (this.sideB * this.sideB) > (this.sideC * this.sideC) || (this.sideA * this.sideA) + (this.sideC * this.sideC) > (this.sideB * this.sideB) || (this.sideC * this.sideC) + (this.sideB * this.sideB) > (this.sideA * this.sideA)) {
+      return true;
+    }
+  }
+
 }
 
 
+//class LineSegment {
+//constructor(x1, y1, x2, y2) {
+// this.x1 = x1;
+//this.y1 = y1;
+//this.x2 = x2;
+//this.y2 = y2;
+//}
+//}
+
 class LineSegment {
-  constructor(x1, y1, x2, y2){
+  constructor(x1, y1, x2, y2) {
     this.x1 = x1;
     this.y1 = y1;
     this.x2 = x2;
     this.y2 = y2;
   }
+
+
+  cal() {
+    let point1 = ((this.x1 + this.x2) / 2);
+    let point2 = ((this.y1 + this.y2) / 2);
+    let res = (point1 - point2)
+
+    console.log('The length is ' + res);
+
+  }
 }
 
 // NOTE: DO NOT REMOVE OR ALTER