diff --git a/formulas1.js b/formulas1.js
new file mode 100644
index 0000000..a42c82c
--- /dev/null
+++ b/formulas1.js
@@ -0,0 +1,109 @@
+// basic Math
+
+let points = 10;
+let xpoints = 7;
+
+points += xpoints;
+console.log(points);
+
+let donuts = 30;
+let ateDonuts = 10;
+
+donuts -= ateDonuts;
+console.log(donuts);
+
+
+
+
+function addition(a, b ){
+ return a + b;
+}
+
+function subtraction(){
+ return a - b;
+}
+
+function multiplication(a, b){
+ return a * b;
+}
+
+function division( a, b){
+ return a / b;
+}
+
+//Area
+
+let side = 4;
+function areaSquare(side){
+ return Math.pow(4, 2);
+}
+
+function areaRectangle(length, width){
+ return length * width;
+
+}
+
+function areaParallelogram(base, height){
+ return base * height;
+}
+
+function areaTriangle(base, height){
+ return (base * height) / 2;
+
+
+}
+
+function areaCircle(radius){
+ return Math.PI * (radius * radius);
+
+}
+
+function areaSphere(radius){
+ return 4 * Math.PI * (math.pow(radius, 2));
+
+}
+
+// surface area
+let side = 4;
+function surfaceAreaCube(side){
+ return 6 * Math.pow(side, 2);
+}
+
+function surfaceAreaCylinder(PI, radius, height){
+ return 2 * Math.PI * (radius * height);
+
+}
+
+// Perimeter
+
+function perimeterSquare(side){
+ return 4 * side;
+}
+
+function perimeterRectangle(length, width){
+ return 2 * length + 2 * width;
+}
+
+function perimeterTriangle(side, side, side){
+ return side * 1 + side * 2 + side * 3;
+
+
+}
+
+function perimeterCircle(PI, diameter){
+ return Math.PI * diameter;
+}
+
+// volume
+
+function volumeCube(side){
+ return Math.pow(side, 3);
+}
+
+function volumeRectangularContainer(length, width, height){
+ return length * width * height;
+}
+
+function volumeCylinder(radius, height){
+ return Math.PI * Math.pow(radius, 2) * height;
+}
\ No newline at end of file
diff --git a/index.html b/index.html
index d66c928..76f362b 100644
--- a/index.html
+++ b/index.html
@@ -3,7 +3,7 @@
Basic Formulas
-
+
Basic Formulas