[b]What do you remember about the mean? How would you calculate the mean of two numbers?[br][br][/b]Hint: sometimes you may have heard the "mean" be referred to as an "average".
[b]What is the mean of 3 and 11? [br][br][/b]Hint: use the applet below to drag the point in the middle around until it's halfway between 3 and 11.
[b]What do you remember about the Pythagorean theorem? When can it be used & what is it used for? [/b]
In the applet above, the areas of the purple and the blue squares add up to the area of the red square. The side length AC is 4 and if we square that we get the purple area of 16. The side length AB is 3 and if we square that we get the blue area of 9. Lastly, the side length BC is 5 and if we square that we get the red area of 25. [br][br]The length of the legs (the shortest sides, those adjacent to the right angle) in a right triangle are A & B in the Pythagorean Theorem [math]A^2+B^2=C^2[/math]. C is the length of the hypotenuse (the longest side, opposite the right angle).
[b]Find the hypotenuse in a right triangle with legs of 5 and 6 inches. Round your answer to 2 decimal places.[/b]