HW done

geom.js

@@ -3,6 +3,23 @@ class Rectangle {
     this.length = length;
     this.width = width;
   }
+
+  isSquare(){
+    if(this.length === this.width ){
+      return true ;
+    }
+    else { return false;}
+  }
+
+  area(){
+    var TheArea = this.length * this.width;
+    return TheArea ;
+  }
+
+  perimeter(){
+    var Theperimeter = 2*(this.length + this.width);
+    return Theperimeter ;
+  }
 }
 
 
@@ -12,16 +29,47 @@ class Triangle {
     this.sideB = sideB;
     this.sideC = sideC;
   }
+
+  isEquilateral(){
+   if(this.sideA === this.sideB &&  this.sideB === this.sideC){
+     return true ;
+   }
+  }
+
+  isIsosceles(){
+  if(this.sideA === this.sideB || this.sideB === this.sideC || this.sideA === this.sideC ){
+    return true;
+  }
+  }
+
+  area(){
+    var s = (this.sideA + this.sideB + this.sideC)/2;
+    var area =  Math.sqrt(s*((s-this.sideA)*(s-this.sideB)*(s-this.sideC)));
+    return area;
+    }
+
+  isObtuse(angle){
+    if(angle >= 90){
+      return true;
+    }
+  }
+
 }
 
 
+
 class LineSegment {
   constructor(x1, y1, x2, y2){
     this.x1 = x1;
     this.y1 = y1;
     this.x2 = x2;
     this.y2 = y2;
   }
+
+  length(){
+    var FindTheLength =  math.sqrt((this.x2-this.x1)*(this.x2-this.x1)+(this.y2-this.y1)*(this.y2-this.y1));
+   return FindTheLength;
+  }
 }
 
 // NOTE: DO NOT REMOVE OR ALTER