Datasheet

Area of a Triangle and Circular Sector “How-To”
The following will demonstrate how to enter the data into the Casio fx-9750GII and
interpret the results.
To set the calculator to calculate in degrees:
1. From the Main Menu, highlight the RUN•MAT
icon and press l or 1.
2. Make sure the calculator is in degree mode by
pressing
Lp, move the cursor down to Angle.
Press
q(Deg) to change it into degrees, thend.
To solve equations including trigonometric functions:
For this example, use the equation for area =
2
1
a•b•sin C.
Let
a = 2, b = 4, and C = 30
o
1. To calculate the area with the given parameters,
press:
.5m2m4mh30l.
The area is 2.
To use the Solver feature:
For this example, we will use the equation for kinetic energy, KE = 0.5
mv
2
.
Let m = 10 kg, v = 25
2
sec
m
.
1. From the Main Menu, highlight the EQUA
icon and press
l or 8, then press e(SOLV).
2. To input the equation, press:
a,L..5a7a2sl
Note: k is used to represent KE.
Activity 8 • Pre-Calculus with the Casio fx-9750GII