Mr. C's Mathematics Web Site

Welcome to Mr. C's Mathematics Web Site. This site will enable you to calculate the area and surface area of various geometric figures: Rectangle, Triangle, Square, and Cirlce. I hope you enjoy it!

Area

definition- the amount of surface inside a closed figure

Rectangle:

Enter the length:

Enter the width:

The area is:

 

Square:

Enter the side:

The area is:

 

 

Triangle:

Enter the base:

Enter the height:

The area is:

Circle:

Enter the radius:

The area is:

Trapezoid:

Enter base1:

Enter base2:

Enter the height:

The area is

 

 

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Surface Area

Definition-The total outside are of ageometric solid

Box:

Enter the length:

Enter the width:

Enter the height:

The surface area is:

sa = (2 * length * width) + (2 * length * height) + (2 * width * height)

 
Sphere:

Enter the radius:

The surface area is:

sa = 4 * 3.14 * (radius * radius)

 

 

Cylinder:

Enter the radius:

Enter the height:

The surface are is:

sa = (2 * 3.14 * radius * radius) + (2 * 3.14 * radius * height)

Paralellogaram:

Enter the base:

Enter the height:

The surface area is:

sa = base * height

 

Cone:

Enter the radius:

Enter the slant height:

The surface area is:

sa = (3.14 * radius * radius) + (3.14 * radius * height)

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