HP 39gs Quick Start Guide

Getting Started 45
Getting Started
45
The Triangle Solver Aplet
This Aplet solves many kinds of geometric and trigonometric problems involving triangles. Press APLET, scroll to Triangle Solver, and press the START menu
key to open this Aplet's single view. Table 1-11 summarizes the functionality of this Aplet.
Table 1-11 Triangle Solver Aplet
Summary of Functionality View Name and Display
Each triangle has 3 side lengths (A, B, and C) and three angles, each opposite one of the
sides ( , , and respectively). Enter any 3 values and the Solver will find the other
values. Note the heading shows you how angles are currently measured RAD (radians) or
DEG (degrees). Go to MODES (SHIFT followed by HOME) to change this setting. The menu
items are:
• EDIT: edit the current value of a field
• RECT: switch to right triangle problem-solving
• SOLVE: solve for the remaining values
Triangle Solver
Example
A triangle has sides of lengths 9 and 6. The angle opposite the second side measures 30°.
Find the length of the third side.
Example 1
α
β
δ

HP 39gs Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Gray
Internal memory	0.256 MB

Weight and Dimensions

Weight	249 g
Dimensions (WxDxH)	187 x 94 x 31 mm