Wednesday, April 16, 2014

Finding the side length of an isosceles triangle




In order to find the side length of an isosceles triangle the following formulas are used:



             a = length of legs
 b = base
  h= height

Remember an isosceles triangle has two congruent angles and two congruent sides.
The video works a sample problem in which the side length of an isosceles triangle is calculated using the above formulas.





Monday, April 14, 2014

Area of a triangle GIF

Quick GIF that covers how to find the area of a triangle if you are given the height. If the height is not given there are several methods for finding the height including Herons formula. This page reviews several methods for finding the area of a triangle based on information you are given. Area of triangle

I understand my GIF is not polished and slick. As a teacher I can't spend hours making the perfect GIF but I enjoy creating these simple little Math GIFs with a very basic program, I feel I get a descent product for the amount of time spent creating it. 

Saturday, April 12, 2014

Five videos that help with SOHCAHTOA

SOHCAHTOA has been used for years in Geometry classes to help remember the trig functions. Here are five videos that do a nice job of explaining the basic trig functions.

This a very basic video but is very creative and well done.

The story of SOHCAHTOA This video is creative and really helps you remember the trig functions.

This video actually works out several problems using the trig functions. The instructor is clear and helpful .
This video is really helpful if you need some help using your TI calculator to solve trig problems.

This video reviews the basics of trig functions and SOHCAHTOA

Click here for more information on SOHCAHTOA

Thursday, April 10, 2014

Wednesday, April 9, 2014

Video of the Day " Solving Absolute Value Inequalities"


Absolute value inequalities


Todays video gives step by step directions on how to solve absolute value inequalities. For more information on this topic please see " Absolute value Inequalities


Monday, April 7, 2014

Angle Side Angle

I need help with understanding " angle side angle" The following two videos explain "ASA" which can be used to prove that two triangles are congruent.
The first video covers when to use angle side angle and the second video works the angle side angle proof.



Angle Side Angle Proof


Monday, March 31, 2014

Five Methods to Prove Triangles are Congruent

This video gives an overview of five methods one can use in order to prove that triangles are congruent.

The five methods covered are as follows:

SSS Side Side Side
SAS Side Angle Side
AAS Angle Angle Side
ASA Angle Side Angle
HL Hypotenuse Leg