HP Prime Graphing Calculator - Manual (Page 299)

Triangle Solver app 295
Solve for the
unknown values
4. Tap . The
app displays the
values of the
unknown
variables. As the
illustration at the
right shows, the
length of the
unknown side in
our example is 3.22967… The other two angles have
also been calculated.
Choosing triangle types
The Triangle Solver
app has two input
forms: a general
input form and a
simpler, specialized
form for right-angled
triangles. If the
general input form is
displayed, and you
are investigating a right-angled triangle, tap
to
display the simpler input form. To return to the general
input form, tap
. If the triangle you are investigating
is not a right-angled triangle, or you are not sure what
type it is, you should use the general input form.