Calculating+The+Hypotenuse


 * __Calculating The Hypotenuse __** Open this GeoGebra file for a review of Pythagoras' theorem.

This video shows another proof of Pythagoras' theorem. media type="youtube" key="hbhh-9edn3c?rel=0" height="360" width="480" align="center"

What mistake does Scarecrow make in this clip from The Wizard of Oz? media type="youtube" key="DUCZXn9RZ9s?rel=0" height="360" width="480" Homer Simpson makes the same mistake. media type="youtube" key="fO1Vhc88QkM?rel=0" height="360" width="480" align="center"

Open this file and save it to your laptop for the notes on today's lesson.

Now attempt the questions below. 1. Use Pythagoras' theorem to calculate the length of the hypotenuse (all answers are integers).  2. Calculate the length of the hypotenuse, expressing your answer as a surd.  3. Calculate the length of the hypotenuse in each of these right-angled triangles. Write your answer correct to 1 decimal place.  4. Calculate the value of the pronumeral in each of the following, correct to 1 decimal place. <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;"> <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">Here is an extension question for fast finishers. <span style="color: #000080; font-family: 'Comic Sans MS',cursive; font-size: 150%;">5. <span style="font-family: 'Comic Sans MS',cursive; font-size: 150%;">