Learning Outcomes
By the end of this section, you will be able to:
- Use the properties of circles
- Find the area of irregular figures
Examples
Before you get started, take this readiness quiz.
- Evaluate [latex]{x}^{2}[/latex] when [latex]x=5[/latex].If you missed this problem, review [link].
- Using [latex]3.14[/latex] for [latex]\pi [/latex], approximate the (a) circumference and (b) the area of a circle with radius [latex]8[/latex] inches.If you missed this problem, review [link].
- Simplify [latex]\frac{22}{7}{\left(0.25\right)}^{2}[/latex] and round to the nearest thousandth.If you missed this problem, review [link].
In this section, we’ll continue working with geometry applications. We will add several new formulas to our collection of formulas. To help you as you do the examples and exercises in this section, we will show the Problem Solving Strategy for Geometry Applications here.
It is your coworkers birthday tomorrow and you decide to make a cake to bring to the office. The container you have is a square with side length 12 inches exactly. If your cake will be circular, what is the largest cake you can make? To find out, you will need to understand the properties of circles. In this chapter, you will also learn about the areas of irregular figures.
