1. ENTRY TASK – Find the value of x and y. 3. Find the geometric mean between 3 and 27. 1.2.

2. 8.1 The Pythagorean Theorem

3. Could you prove this to someone?? After today’s group task, you will be able to.

4. 1 2 2 3

5. Let’s Practice! Find the value of x. Express your answer in simplest radical form.

6. A window washer has an 18-ft ladder. He needs to reach the bottom of a window 16 feet of the ground. How far out from the building should the base of the ladder be? Round to the nearest tenth of a foot.

7. A square has a diagonal of 12 cm. What is the perimeter of the square? Express in simplest radical form.

9. PRACTICE Classify as right, acute or obtuse. 4, 6, 7 9, 11, 16

10. Assignment Page 495 #1-6, 14, 22, 23, 27