problem solving with quadratics. problem solving guide:
TRANSCRIPT
Problem Solving with Quadratics
Problem Solving Guide:
Problem
A rectangle has length 3 cm longer than its width. Its area is 42cm². Find its width.
Problem
Is it possible to bend a 12cm length of wireto form the shorter sides of a right-angled triangle with area of 20cm²?
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?
32
nn
D
Formula
Use the Pythagorean theorem to solve the following problems:
Solve (page 307)