completed JS Formulas

js/formulas.js

@@ -1,80 +1,143 @@
-// Basic math formulaas
-function addition(num1, num2){
-  return -1;
+// Basic math formulas
+function addition(num1, num2) {
+  let sum = num1 + num2
+  return sum;
 }
+//addition (-2,1)
+//-1
 
 function subtraction(num1, num2){
-  return -1;
+  let difference = num1 - num2
+  return difference;
 }
+// subtraction(4,5)
+// -1
 
-function multiplication(num1, num2){
-  return -1;
+
+function multiplication(num1, num2) {
+  let answer = num1 * num2
+  return answer;
 }
+// multiplication (3,4)
+// 12
+
 
-function division(num1, num2){
-  return -1;
+function division(num1, num2) {
+  let answer = num1/ num2
+  return answer;
 }
+// division (12,4)
+// 3
 
-// Area formulaas
+// Area formulas
 function areaSquare(side){
-  return -1;
+  let answer = side * side
+  return answer;
 }
+// areaSquare (10)
+// 100
 
-function areaRectangle(length, width){
-  return -1;
+function areaRectangle(length, width) {
+  let answer = length * width
+  return answer;
 }
+// areaRectangle(4, 5)
+// 20
+
 
 function areaParallelogram(base, height){
-  return -1;
+  let answer = base * height
+  return answer;
 }
+// areaParallelogram(8,6)
+// 48
 
 function areaTriangle(base, height){
-  return -1;
+  let answer = (1/2) * base * height
+  return answer;
 }
+// areaTriangle (3, 4)
+// 6
 
 function Circle(radius){
-  return -1;
+  let answer = (radius * radius) * Math.PI
+  return answer;
 }
+// Circle(4);
+// 50.26548245743669
+
 
 function Sphere(radius){
-  return -1;
+let answer = (radius * radius) * 4 * Math.PI
+  return answer;
 }
+// Sphere(5);
+// 314.1592653589793
 
 // Surface Area formulas
 function surfaceAreaCube(side){
-  return -1;
+ let answer = 6 * (side * side)
+  return answer;
 }
+// surfaceAreaCube(7);
+// 294
 
 function surfaceAreaCylinder(radius, height){
-  return -1;
+  let answer = 2 * Math.PI * radius * height
+  return answer;
 }
+// surfaceAreaCylinder(3,7);
+// 131.94689145077132
 
 // Perimeter formulas
 function perimeterSquare(side){
-  return -1;
+  let answer = 4*side
+  return answer;
 }
+// perimeterSquare (16);
+// 64
 
 function perimeterRectangle(length, height){
-  return -1;
+  let answer = 2*length +  2*height
+  return answer;
 }
+//perimeterRectangle(2,3)
+//10
+
 
 function perimeterTriangle(side1, side2, side3){
-  return -1;
+  let answer = side1 + side2 + side3
+  return answer;
 }
+// perimeterTriangle(2,3,4)
+// 9
+
 
 function perimeterCircle(diameter){
-  return -1;
+  let answer = Math.PI*diameter
+  return answer;
 }
+// perimeterCircle(12)
+// 37.69911184307752
 
 // Volume formulas
 function volumeCube(side){
-  return -1;
+  let answer = side * side * side
+  return answer;
 }
+// volumeCube(2)
+// 8
 
 function volumeRectangular(length, width, height){
-  return -1;
+  let answer = length*width*height
+  return answer;
 }
+// volumeRectangular(4,5,6)
+// 120
 
 function volumeCylinder(radius, height){
-  return -1;
+  let answer = Math.PI * (radius * radius) * height
+  return answer;
 }
+// volumeCylinder(6,7)
+//791.6813487046279