1. Problem Solving with Quadratics

2. Problem Solving Guide:

3. Problem A rectangle has length 3 cm longer than its width. Its area is 42cm². Find its width.

4. Problem Is it possible to bend a 12cm length of wireto form the shorter sides of a right-angled triangle with area of 20cm²?

5. Solve the following problems. The number of diagonals of an n-sided polygon is given by the formula A polygon has 90 diagonals. How many sides does it have? Formula Use the Pythagorean theorem to solve the following problems:

6. Solve (page 307)