Area of a Rhombus

Area of a Rhombus

Video of the day

Today we are going to look at finding the area of a Rhombus

In this video you will ……..

Learn two methods for finding the area of a Rhombus

Watch two sample problems.

Learn the difference between altitude and height.

Learn why you can’t square the sides for the area but need to use the altitude.

How to find the area of a rhombus when the altitude is unknown

How to calculate the area by using the diagonals of a rhombus.

For more information please see Area of a Rhombus  or Area Formulas Plane Shapes

Prime Factorization

Featured Video of the Day

Prime Factorization

Prime factorization is the process of finding which prime numbers when multiplied together equal the original number. In this video you will learn…

A simple, but very effective method of prime factorization.

A step by step example of prime factorization

The definition of Prime Factorization

The definition of prime numbers

For more information and a prime factorization calculator please see

Prime Factorization

Finding Area of Triangle on a Coordinate Plane

Featured Video of the Day

Finding the area of a Triangle on a coordinate plane.

Imagine you have to drive to watch your favorite sports team play. Based on many factors like traffic, time, or road conditions, there are many different paths you could follow to arrive at your destination. In the same fashion, there are several paths one can take to calculate the area of a triangle based on the information given. The video of the day describes one method.

In this video you will learn.......

A method that can be used to find the area of a triangle when altitude is not given.

A method to find the area of a triangle without a right angle.

How to use the three vertices to find the area of a triangle.

The formula for finding the area using the coordinate plane method.

Watch an example problem using the coordinate plane method.

 

For more information please see Area of a triangle

Complementary Angles

Featured video of the day

Complementary Angles

Hope this video helps out in Math class.

In this video you will learn.

Definition of Complementary Angles

How to determine if an angle is complementary or a supplementary angle.

A sample problem involving complementary angles

Definition of a supplementary angle

For more information please see Complementary Angles

Area of a triangle

The goal of this post is to give you several methods for finding the area of a triangle and a video that goes with each method. The method used to find the area is based on the information you are given.

 

If you know the Base and Altitude use      half base times height

 Video half base times height

 If you don’t know the altitude    use  Heron’s formula

 Video Heron's formula

 If you know Two sides and included angle     use Side Angle Side ( SAS)

 Video Side angle side

 

If you know X and Y vertices of the corners  use Box Method

 Video Box Method

 

 If you know Triangle is equilateral   use    Equilateral Triangle Area

 

 Video Equilateral Area Method

 If you know Triangle is isosceles     use    ½ base times height

 Video Half base * height

 

For even more information on finding the area of a triangle please see.Finding the area of a triangle

Finding the area of a triangle

 The goal of this post is to give you several methods for finding the area of a triangle and a video that goes with each method. The method used to find the area is based on the information you are given.

 

If you know the Base and Altitude use      half base times height

 Video half base times height

 If you don’t know the altitude    use  Heron’s formula

 Video Heron's formula

 If you know Two sides and included angle     use Side Angle Side ( SAS)

 Video Side angle side

 

If you know X and Y vertices of the corners  use Box Method

 Video Box Method

 

 If you know Triangle is equilateral   use    Equilateral Triangle Area

 

 Video Equilateral Area Method

 If you know Triangle is isosceles     use    ½ base times height

 Video Half base * height

 

For even more information on finding the area of a triangle please see.Finding the area of a triangle

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

         

 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

     

                                                                                            

 

 

 

 

 

 

 

                                                                        

Area of Plane Figures

Finding area of plane figures

 

 

Area is the space covered in a flat, 2-dimensional plane inside a bounded region.  Think of area in terms of painting a wall. The area of plane shapes is the amount of units squared that can fit inside the shape. It is measured in units squared.

 

 

When finding the area of plane figures you need specific measures.  One of the greatest lessons for students is deciding what information they have given and which formula they need to use to find the area of the plane figures. 

 Area can also be found on a coordinate plane using order pairs to find necessary dimensions.   

 You can access videos and informational pages for each of the plane shapes on our area of plane figures formula page. The following plane figures are covered.

Triangles

Circle

Trapezoid

Parallelogram

Rectangle

Square

Rhombus

 

Also, for most of the plane figures I have a calculator that calculates area, diagonal length, and volume for each of the plane figures. Here is a link to Math calculators