Texas Instruments TI-83 Plus Manual Book page 42

Chapter 1: Number Sense
Section 3: Real Numbers
³ Try-It!é on Your TI.83 Plus or TI-73
Word Problem: Missy's Garden
Missy wants to build a small fence around a garden in her backyard. The
garden is in the shape of a right triangle. One leg is 2 meters and the
other leg is 1 meter. The store sells fencing in tenths of a meter.
1. What is the exact perimeter of Missy's garden? Show all your work.
Math Hint: Use the Pythagorean theorem to find the length of the third side of the garden, and then find the perimeter of the
garden. (See the Real Numbers Overview on the calculator.)
2. What length of fencing should Missy buy if the store only sells the fencing in tenths of a meter?
Use the calculator. Show all your work.
Calculator Hint: After you calculate the approximate answer on your calculator, try setting . so that Float=1.
See ³ TIpé 2: Adjusting Your Calculator Settings for details. This will give you one decimal place or tenths. Observe how the
calculator displays the results!
Topics in Algebra 1
Name
Date
(continued)
© 2001 Texas Instruments
2 m
1 m
Student Worksheet 1-28