Set angle measure, Specify the known values – HP Prime Graphing Calculator User Manual
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Triangle Solver app
2. If there is unwanted data from a previous calculation,
you can clear it all by pressing
SJ
(Clear).
Set angle
measure
Make sure that your angle measure mode is appropriate.
By default, the app starts in degree mode. If the angle
information you have is in radians and your current angle
measure mode is degrees, change the mode to degrees
before running the solver. Tap
or
depending on the mode you want. (The button is a toggle
button.)
N o t e
The lengths of the sides are labeled
a
,
b
, and
c
, and the
angles are labeled
A
,
B
, and,
C
. It is important that you
enter the known values in the appropriate fields. In our
example, we know the length of two sides and the angle
at which those sides meet. Hence if we specify the lengths
of sides
a
and
b
, we must enter the angle as
C
(since
C
is
the angle where
A
and
B
meet). If instead we entered the
lengths as
b
and
c
, we would need to specify the angle
as
A
. The illustration on the screen will help you determine
where to enter the known values.
Specify the
known values
3. Go to a field whose value you know, enter the value
and either tap
or press
E
. Repeat for
each known value.
(a). In
a
type 4
and press
E
.
(b). In
b
type 6
and press
E
.
(c). In
C
type 30
and press
E
.